Journals >Chinese Journal of Quantum Electronics
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2007
Volume: 24 Issue 3
23 Article(s)
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Research Article
Principle and application of femtosecond optical parametric amplification
Ping QIU, Qing-pu WANG, Xing-yu ZHANG, and Yong-fu LI
Femtosecond optical parametric amplification is an effective means of generating broadband ultrashort pulses. First,the theoretical background of this technology is presented. Numerical simulations are carried out to show the impact of group-velocity mismatch and phase mismatch. The results suggest that phase mismatch Femtosecond optical parametric amplification is an effective means of generating broadband ultrashort pulses. First,the theoretical background of this technology is presented. Numerical simulations are carried out to show the impact of group-velocity mismatch and phase mismatch. The results suggest that phase mismatch can reduce the conversion efficiency,while group velocity can simultaneously bring down the conversion efficiency and introduce distortion to the signal pulse. Second,some progress and latest advances concerning ultrshort pulses,especially few-cycle pulses generation are reported. A specific noncollinear optical parametric amplification system used for generating 3.9 fs pulses is introduced. Supercontinuum injection,angular dispersion of pump beam and choice of operating medium are analyzed in detail. Finally,the latest achievement in acquiring high-power femtosecond pulses through this technology is presented..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 273 (2007)
Recent progress of fiber laser combining technology
Yang LIU, Yong CHENG, Xiao-bing WANG, Bin SUN, and Li-jun WANG
The latest progress on fiber laser combining technology was presented,and the strongpoint and the shortcoming of the popular combining technology were analyzed. At last,the prospect and future development trend of fiber laser coherent combining technology were proposed.The latest progress on fiber laser combining technology was presented,and the strongpoint and the shortcoming of the popular combining technology were analyzed. At last,the prospect and future development trend of fiber laser coherent combining technology were proposed..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 283 (2007)
A new nonlinear diffusion equation for SAR speckle-removal
Xia ZHAO
Traditional speckle removal methods generally result in the loss of image features. Based on the principle analysis and the prior knowledge of SAR image,a new nonlinear diffusion model is constructed. Theoretical analysis and numerical results demonstrate that the proposed method can efficiently depress spackle and enhTraditional speckle removal methods generally result in the loss of image features. Based on the principle analysis and the prior knowledge of SAR image,a new nonlinear diffusion model is constructed. Theoretical analysis and numerical results demonstrate that the proposed method can efficiently depress spackle and enhance the feature of SAR image..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 289 (2007)
Noise-filtering of surface plasmon resonance spectra with wavelet analysis
Yan D U, and Da-kai LIANG
Based on optical fiber surface plasma resonance sensor,the application of wavelet denoising with threshold for the SPR reflected spectrum is studied. At first,Gaussian white noise is added to the theoretical spectrum,and five kinds of mother wavelets,which are Daubechies9,Symlet7,Symlet11,Symlet14 and Symlet15 are seleBased on optical fiber surface plasma resonance sensor,the application of wavelet denoising with threshold for the SPR reflected spectrum is studied. At first,Gaussian white noise is added to the theoretical spectrum,and five kinds of mother wavelets,which are Daubechies9,Symlet7,Symlet11,Symlet14 and Symlet15 are selected to reduce the noise. Comparing the resonant reflectivity and wavelength of SPR spectrum after denoising with that of the theoretical value,Symlet11 wavelets obtained the best performance. Then,five groups of the experimental spectrum data were acquired from optical fiber SPR sensing system at different time,and their noise are reduced by Symlet11 wavelets. The standard deviations of experimental resonant wavelength and reflectivity after denoising are 0.4039 nm and 0.2231%. All these work proves that wavelet denoising with threshold can well correct the migration of resonant wavelength caused by noise,and it will bring convenience to the practical application of optical fiber SPR sensor..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 294 (2007)
Phase error correction by multiplicative method in optical fiber Fourier transform spectrometer
Bao-sheng LI, Yong LIU, and An WANG
The phase error presents for sample error and dispersion of the fiber in optical fiber Fourier transform spectrometer(FFTS),distortion of spectrum can be induced. Multiplicative method can correct phase error in frequency domain. The calculated low-resolution phase spectrum with short two-sided interferogram corrects tThe phase error presents for sample error and dispersion of the fiber in optical fiber Fourier transform spectrometer(FFTS),distortion of spectrum can be induced. Multiplicative method can correct phase error in frequency domain. The calculated low-resolution phase spectrum with short two-sided interferogram corrects the high-resolution spectrum through high resolution amplitude spectrum multiplied by the cosine of the difference of low resolution and high resolution phase spectrum by using multiplicative procedure which is operated in frequency domain. The results show that multiplicative method is also effective in FFTS. Phase corrected spectrum agrees well with spectrum from commercial grating spectrum instrument. The method,which is not only simpler and faster than the others,but also has high resolution,and remains the features of noise and keeps the baseline immune to noise,can be widely applied in FFTS..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 300 (2007)
Concentration calibration of multi-component analysis based three-dimensional fluorescence spectroscopy
Hong-bin LI, Wen-qing LIU, Zhi-gang WANG, Yu-jun ZHANG, Nan-jing ZHAO, Wei-chang SIMA, and Dong CHEN
Once the dissolved organic matter in water absorbs the UV light,the fluorescence emission occurs,and the fluorescence can be absorbed by other matter in water. This absorptions affect the accuracy of multi-component analysis. A method of nonlinear concentration calibration for multi-component analyzing based on the tecOnce the dissolved organic matter in water absorbs the UV light,the fluorescence emission occurs,and the fluorescence can be absorbed by other matter in water. This absorptions affect the accuracy of multi-component analysis. A method of nonlinear concentration calibration for multi-component analyzing based on the technique of three-dimensional fluorescence spectrum and PARAFAC model was investigated. The absorption coefficient of each fluorescence component absorbed by other was especially estimated according to the standard sample data,and all the coefficients were used for each component concentration measurement. The obtained results show that the method improves the performance and accuracy of multi-component analysis..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 306 (2007)
Controlled quantum dialogue based on W state
Guang-chun PIAO, and Shou ZHANG
We present a controlled quantum dialogue scheme by using W states. The legitimate users Alice and Bob can simultaneously exchange their secret messages with the help of the controller,Charlie. We analyze the security of the scheme and show that the scheme can efficiently resist the intercept-and-resent attack,the entanWe present a controlled quantum dialogue scheme by using W states. The legitimate users Alice and Bob can simultaneously exchange their secret messages with the help of the controller,Charlie. We analyze the security of the scheme and show that the scheme can efficiently resist the intercept-and-resent attack,the entangle-measure attack,and the disturbance attack..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 311 (2007)
Quantum key distribution and controlled quantum direct communication applying product state of qutrit
Ai-dong ZHU, and Shou ZHANG
On basis of the nonlocality without entanglement proposed by Bennett,the properties of an orthogonal set of product states of two qutrits are revealed,i.e.,the transformation among different composite spaces can be realized by using three unitary operations,and the correlation between two composite spaces is found. TheOn basis of the nonlocality without entanglement proposed by Bennett,the properties of an orthogonal set of product states of two qutrits are revealed,i.e.,the transformation among different composite spaces can be realized by using three unitary operations,and the correlation between two composite spaces is found. These properties can be used to quantum communication and quantum cryptography. As examples,we propose a scheme of controlled quantum secure direct communication and one of quantum key distribution. It is shown that applying the product state of qutrit to quantum information processing not only is of the advantages of large capacity and high efficiency,but ensures the security..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 316 (2007)
Entropy squeezing of the moving atom interacting with the two-mode squeezing vacuum field
Rui-fang YANG, Sachuerfu , and Haribala
The information entropy squeezing properties of the atom in motion interacting with the two-mode squeezing vacuum field via two-photon transition are studied by means of quantum theory. The influences of the velocity of atomic motion,the field structure and the parameter of squeezing field on the information entropy sqThe information entropy squeezing properties of the atom in motion interacting with the two-mode squeezing vacuum field via two-photon transition are studied by means of quantum theory. The influences of the velocity of atomic motion,the field structure and the parameter of squeezing field on the information entropy squeezing properties of the atom are investigated as the initial atom is in any state. The results indicate that the value of squeezed component of the atomic dipole,squeezed frequency,amplitude and squeezed direction of the atomic information entropy can be controlled by choosing the atomic initial state,the velocity of atomic motion,the field structure and the squeezing factor of field and the squeezing phase angle of the field,respectively. In the longer time,squeezing effects of the atom in motion can be obtained by choosing the system parameters. The mixing degree of atomic initial state has no influence on the entropy squeezing of the atom in motion..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 323 (2007)
Time evolution of two-atom entanglement in Tavis-Cummings model
Wan-xia HUANG, Mao-sheng WANG, and Qin-mou WANG
Based on the entanglement degree of two subsystem which can be measured by the negative eigenvalues of the partial transposition matrix,time evolution of entanglement degree of two atoms in the Tavis-Cummings model,which is interacted with a field in the Fock state,is investigated by numerical methods. When these two aBased on the entanglement degree of two subsystem which can be measured by the negative eigenvalues of the partial transposition matrix,time evolution of entanglement degree of two atoms in the Tavis-Cummings model,which is interacted with a field in the Fock state,is investigated by numerical methods. When these two atoms are initially prepared in mixed states,the results show that the field in the Fock state,the initial state of two-atom and the coupling constant between the field and the two-atoms have a dramatic influence on the time evolution character of entanglement degree of two atoms..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 329 (2007)
Quantization of mesoscopic RLC circuit and its quantum effects at finite temperature
Bao-long LIANG, Yan-ling LI, Xiang-guo MENG, and Ji-suo WANG
By using canonical transformation,the quantization scheme of mesoscopic RLC circuit is given. With the aid of numerical calculation,the regulation is investigated about how the Wigner function of the thermal vacuum state varies with the temperature. Meanwhile,the quantum effects of the charge and self-conductance magneBy using canonical transformation,the quantization scheme of mesoscopic RLC circuit is given. With the aid of numerical calculation,the regulation is investigated about how the Wigner function of the thermal vacuum state varies with the temperature. Meanwhile,the quantum effects of the charge and self-conductance magnetic flux in the thermal vacuum state are discussed by using Weyl-Wigner correspondence. It is found that,Wigner function of the thermal vacuum state at low temperature is a stable wave packet,but it diffuses with the temperature increasing and the quantum effects of charge and self-conductance magnetic flux in the thermal vacuum state vary with the temperature and time,besides the circuit parameters..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 335 (2007)
Spectral characteristic analysis of photonic crystal fiber with high-index rods
Lan-xin DENG, Li YANG, and Jing-ren QIAN
By finite difference method,the spectrum of photonic crystal fibers with high-index inclusions is obtained and its application for sensor designing is discussed. The simulation of transmission spectrum of this fiber with different rings of cladding holes is carried out. In the case of two rings of holes,a suitable passBy finite difference method,the spectrum of photonic crystal fibers with high-index inclusions is obtained and its application for sensor designing is discussed. The simulation of transmission spectrum of this fiber with different rings of cladding holes is carried out. In the case of two rings of holes,a suitable passband is found and its stop wavelength changes with high sensibility,almost linearly,as the index of inclusions changes. In average,the wavelength changes 24 nm when the index changes 0.01 in range of 1.48～1.8.This conclusion implies that the novel photonic crystal fiber sensor has high sensitivity and wide measuring range..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 341 (2007)
Principle of fiber interferometer measuring optical turbulence and analysis of polarization noise
Ke-e YUAN, Hai-ping MEI, and Rui-zhong RAO
The high precision fiber optical Mach-Zehnder interferometer is suitable for the measurement of refractive index fluctuations in turbulent atmosphere. However,the variation of polarization state,called polarization noise,in low birefringence single mode optical fiber causes the phenomenon of signal fading. The expressiThe high precision fiber optical Mach-Zehnder interferometer is suitable for the measurement of refractive index fluctuations in turbulent atmosphere. However,the variation of polarization state,called polarization noise,in low birefringence single mode optical fiber causes the phenomenon of signal fading. The expressions of interferometer's output power,fringe visibility and phase noise are obtained through the method of Poincare sphere analysis. Angle of polarization between input light and optical fiber interferometer must be controlled at about zero by adding mechanical polarization controller. So polarization fading and phase noise can be restrained. Furthermore,manipulative principle of polarization controller is showed. It is an indispensable method to construct optical fiber interferometer of stabilization for optical turbulence..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 347 (2007)
Axial light intensity distribution of limited Gaussian beams in atmospheric turbulence
Peng TIAN, Xiu-hua YUAN, and Guo-yun ZHANG
Using extended Huygens-Fresnel principle,the propagation characteristics of the Gaussian beams limited by a circular aperture in atmospheric turbulence are analyzed,and the analytical expression of average intensity on axis is derived. Through the numerical simulation,the average intensity on axis is calculated with diUsing extended Huygens-Fresnel principle,the propagation characteristics of the Gaussian beams limited by a circular aperture in atmospheric turbulence are analyzed,and the analytical expression of average intensity on axis is derived. Through the numerical simulation,the average intensity on axis is calculated with different turbulence intensity,aperture size and wavelength. The results shows that the oscillation rises in the near-field,its amplitude reduces with the increase of the turbulence intensity and transmitting aperture,and its period rises with the increase of propagation distance. In far-field,the oscillation dies out and the average intensity declines smooth with the increase of propagation distance,the position of the last maximum value of average intensity is in direct proportion to the turbulence intensity and wavelength,and is in inverse proportion to the transmitting aperture..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 352 (2007)
Analysis of scanning technology of PCB laser projection imaging
Qing-hua LIN, jing LI Wen, and Jin-yun ZHOU
By comparing the method of step-and-repeat scanning with the one of hexagonal seamless scanning,which are favorably used in the laser projection imaging for printed circuit board(PCB),it is shown that the hexagonal seamless scan-repeat technology is of more superiority. It is expounded the process of uniform exposure iBy comparing the method of step-and-repeat scanning with the one of hexagonal seamless scanning,which are favorably used in the laser projection imaging for printed circuit board(PCB),it is shown that the hexagonal seamless scan-repeat technology is of more superiority. It is expounded the process of uniform exposure in hexagonal seamless scanrepeat technology as well as the principle to achieve it. It is also analyzed the factors to affect scanning imaging such as exposure dose,velocity and so on..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 357 (2007)
Influence of the depolarization effect on the third-harmonic generation
Chang-ning PENG
The influence of the depolarization effect on the third-harmonic generation spectrum in an asymmetric semi-parabolic quantum well is studied. A concise formulation of the thirdharmonic generation is presented. The calculation of a semi-parabolic quantum well shows that triply resonance is destroyed by the depolarizatioThe influence of the depolarization effect on the third-harmonic generation spectrum in an asymmetric semi-parabolic quantum well is studied. A concise formulation of the thirdharmonic generation is presented. The calculation of a semi-parabolic quantum well shows that triply resonance is destroyed by the depolarization effect and original triply resonance peak is replaced by one double resonance and one single peak..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 361 (2007)
Numerical simulation of photorefractive spatial soliton propagation in optically induced crystal
Wei-ping ZHONG
The nonlinear Schr?dinger(NLS)equation described the spatial solitons of refraction photo-electronic crystal is given. The characteristics of photorefractive spatial soltons are investigated by using the split-step Fourier transformation. Numerical results show that the transmission light beam losses the property of spThe nonlinear Schr?dinger(NLS)equation described the spatial solitons of refraction photo-electronic crystal is given. The characteristics of photorefractive spatial soltons are investigated by using the split-step Fourier transformation. Numerical results show that the transmission light beam losses the property of spatial soliton when the Kerr effect is neglected. Spatial soliton may be deformed along with the increase of extra light intensity when Kerr effect compares with modulation light intensity. Spatial soliton propagates steadily and indeformedly when Kerr effect changes very strong,and it possesses the characteristics of ideal information carrier..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 365 (2007)
The influence of pulse-width on SBS phase conjugation fidelity
Yi ZHANG, Zhi-wei Lü, Wei-ming HE, Yu-lei WANG, and Si HA
In order to research the influence of pulse-width on stimulated Brillouin scattering(SBS)phase conjugation fidelity,experiments were performed on three different SBS media CCl4,N-hexane and CS2. The method of array camera is used under the conditions that pulse-width is respectively 12 ns,7 ns,2 us. Experimental resultIn order to research the influence of pulse-width on stimulated Brillouin scattering(SBS)phase conjugation fidelity,experiments were performed on three different SBS media CCl4,N-hexane and CS2. The method of array camera is used under the conditions that pulse-width is respectively 12 ns,7 ns,2 us. Experimental results show that pulse-width has a great influence on SBS fidelity. The fidelity value of SBS has higher standard,and more stability when pulse-width is a greatly larger than phonon lifetime;It gradually falls down when pulse-width equals to phonon lifetime;It declines rapidly and has strong fluctuation when pulse-width is less than phonon lifetime..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 369 (2007)
Influences of Compton scattering on the small-scale self-focusing in the gain medium
Dong-shan HAO, and Xiao-dong HUANG
According to the properties of the small-scale self-focusing of the multi-photon nonlinear Compton scattering in gain medium,the theory of the nonlinear scattering of the small-scale self-focusing was put forward,and the small-scale modulation equation,gain relation and filamentation distance were revealed. The resultsAccording to the properties of the small-scale self-focusing of the multi-photon nonlinear Compton scattering in gain medium,the theory of the nonlinear scattering of the small-scale self-focusing was put forward,and the small-scale modulation equation,gain relation and filamentation distance were revealed. The results show that the critical frequency and the fastest growing frequency are almost the same. In the gain medium,the fastest growing frequencies of the nonlinear disturbance and the largest rate of rise taken place by Compton scattering almost have not relations with the background optical intensity and propagation distance. Under the certain input and output powers,in the initial stage of the scattering,the background optical energy,the fastest growing frequency of the small-scale disturbance,the largest gain and its B integral are quickly increased,the scope of the modulating frequency is quickly widened,and the filamentation distance is prolonged by the scattering optical. Then,their changes almost have not relations with the scattering..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 374 (2007)
Analyse of thermo-refractive noise in runtime of Gauss pulse streams in fiber
Zhen-zhu WAN, Shi-chen WU, and Zhong-zhu LIU
When Gauss pulse streams run in the fiber,the power loss induces the increase of fiber temperature,which is thermo-refractive noise. The thermo-refractive noise influences the runtime of optical solitons in the detection of gravitational redshift by optical solitons storage rings. Based on 1-dimension(1-D)thermal conduWhen Gauss pulse streams run in the fiber,the power loss induces the increase of fiber temperature,which is thermo-refractive noise. The thermo-refractive noise influences the runtime of optical solitons in the detection of gravitational redshift by optical solitons storage rings. Based on 1-dimension(1-D)thermal conduction equation,the authors calculate the upper limit of the fluctuation of the fiber temperature. The relation between the upper limit of the total runtime and the bit rate of the stream is deduced too. According to this relation,one can choose an appropriate bit rate of pulse stream in term of runtime variance and the sensitivity required by the measurements. It avails to design a measurement by using pulse streams involving optical solitons in storage rings. And it also gives a reference for the detection of gravitational redshift by optical solitons storage rings..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 381 (2007)
All-optical light modulation based on polymer waveguide by prism-waveguide coupling
Dan-dan PAN, Yu-ping CHEN, Rui WU, Xian-feng CHEN, Qing-hua MENG, and Jie-feng YU
An all-optical light modulation scheme based on improved prism-waveguide coupling method is developed. All-optical modulation is demonstrated due to the thermo-optic effect of anthraquinone organic dye-doped polymethyl-methacrylate films. The pump light is incident upon the top of the prism perpendicularly,so that the An all-optical light modulation scheme based on improved prism-waveguide coupling method is developed. All-optical modulation is demonstrated due to the thermo-optic effect of anthraquinone organic dye-doped polymethyl-methacrylate films. The pump light is incident upon the top of the prism perpendicularly,so that the probe and pump lights are easy to be coupled into the waveguide films. The intensity of the probe light is modulated by the intensity of the pump light and the response time is about 20ms. The scheme can also be applied to all-optical modulation or switch based on the third-order nonlinear Kerr effect which has shorter response time..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 387 (2007)
Propagation characteristics of confocal elliptical coaxial line filled with multilayer dielectrics
Tian-xin XIONG
By using the method of separation of variables in the elliptical-cylindrical coordinate system,the mode eigenequation for a confocal elliptical coaxial line filled with multilayer dielectrics is presented. When the elliptical coaxial line becomes a circular coaxial line,the mode eigenequation of the circular coaxial liBy using the method of separation of variables in the elliptical-cylindrical coordinate system,the mode eigenequation for a confocal elliptical coaxial line filled with multilayer dielectrics is presented. When the elliptical coaxial line becomes a circular coaxial line,the mode eigenequation of the circular coaxial line can be obtained from the mode eigenequation of the elliptical coaxial line using the asymptotic formulae of angular and radial Mathieu functions. The results show that the mode eigenequation of a circular coaxial line filled with multilayer dielectrics can be treated as a special case of an elliptical coaxial line. When the major semi-axis value of the interior conductor of an elliptical coaxial line equals zero,the elliptical coaxial line becomes an elliptical waveguide. In the same way,the mode eigenequation of the elliptical waveguide filled with multilayer dielectrics is derived. When the elliptical coaxial line or elliptical waveguide is only filled by one layer dielectric,the mode eigenequations for them are obtained from the general mode eigenequations. These results are consistent with other scientific literatures. Finally,numerical results for some modes are presented to analyze the propagation characteristics influenced by the dielectrics filled in the confocal elliptical coaxial lines and influenced by their structures,etc..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 391 (2007)
Polarization properties of elliptical core oblate hexangular structure polymer photonic crystal fiber
Ya-ni ZHANG
The polarization properties of elliptical core triangle lattice oblate hexangular structures photonic crystal fibers(PCF)were investigated by full vector localized basis function model based on polymer PMMA. The dependences of relative holes-spacing rate and phase modal birefringence and group birefringence were numeriThe polarization properties of elliptical core triangle lattice oblate hexangular structures photonic crystal fibers(PCF)were investigated by full vector localized basis function model based on polymer PMMA. The dependences of relative holes-spacing rate and phase modal birefringence and group birefringence were numerically analyzed,and compared them with those of triangle lattice square hexangular structure. The results show that the polarization properties of elliptical core ablate hexangular structure PCF are strongly dependent on structures parameters of PCF. Due to chromatic dispersion,the group birefringence is larger than phase birefringence. But,by choosing suitable relative hole-diameter or relative holespacing rate,it is possible to realize the single mode operating of high birefringence and zero polarization mode dispersion at a given wavelength. This conclusion is useful for preparing high birefringence polymer photonic crystal fibers..
Chinese Journal of Quantum Electronics
- Publication Date: Oct. 11, 2021
- Vol. 24, Issue 3, 397 (2007)
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