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Journals >
Chinese Journal of Lasers
Contents
1991
Volume: 18 Issue 7
14 Article(s)
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Research Article
Optical pulse devices based on McCall instability
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper the demonstration of optical instability in BILED circuit and the realization of optical pulse generator based on this circuit are presented. The condition of instability is analysed theoretically. The device may be used as clock-pulse generator in optical digital computing experiment.
In this paper the demonstration of optical instability in BILED circuit and the realization of optical pulse generator based on this circuit are presented. The condition of instability is analysed theoretically. The device may be used as clock-pulse generator in optical digital computing experiment..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 520 (1991)
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33 fs pulse generation by using mixed dye saturable absorber
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
33-fs pulses have been generated from CPM with a mixed DODCI and malachite green (MG) absorber. The fast recovery and the higher absorption cross section of MC accelerate the shaping thus favor the mode locking.
33-fs pulses have been generated from CPM with a mixed DODCI and malachite green (MG) absorber. The fast recovery and the higher absorption cross section of MC accelerate the shaping thus favor the mode locking..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 523 (1991)
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Measurement of optical homogeneity of NdAl
3
(BO
3
)
4
(NAB) crystals
[in Chinese], [in Chinese], and [in Chinese]
Reported in this paper is a method for optical homogeneity measurement of NdAl3(BO3)4, a strong absorption crystal to 632.8 nm line of He-Ne laser.
Reported in this paper is a method for optical homogeneity measurement of NdAl3(BO3)4, a strong absorption crystal to 632.8 nm line of He-Ne laser..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 557 (1991)
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Holography and Information Processing
Optical parallel multiple matrice multiplier
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A novel parallel multiple matrice multiplier based on outer product decomposition is proposed. The optical system includes only one light source array, five lenses and two SLM which can be replaced by two masks in this preliminary study. Besides the analog multiplications of matrices, one polarization and rotation enco
A novel parallel multiple matrice multiplier based on outer product decomposition is proposed. The optical system includes only one light source array, five lenses and two SLM which can be replaced by two masks in this preliminary study. Besides the analog multiplications of matrices, one polarization and rotation encoding method are introduced and applied to digital optical two dimension transform..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 540 (1991)
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Ray propagation and image formation through an exponential-type defocusing GRIN fiber
[in Chinese]
The ray propagation and image formation through an exponential-type defo-cusing GRIN fiber is studied. The analytical solutions for ray paths in the fiber are obtained from the ray differential equation and the Gaussian parameters and the imaging formulas of the lens are also given.
The ray propagation and image formation through an exponential-type defo-cusing GRIN fiber is studied. The analytical solutions for ray paths in the fiber are obtained from the ray differential equation and the Gaussian parameters and the imaging formulas of the lens are also given..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 545 (1991)
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Laser Physics
Thermal loading limits of different types of laser glass slabs
[in Chinese], [in Chinese], and [in Chinese]
The thermal properties and thermal loading limits for different types of silicate and phosphate Nd: glass slabs have been studied. The average laser power limits for the slabs have been investigated by calculation and experiment.
The thermal properties and thermal loading limits for different types of silicate and phosphate Nd: glass slabs have been studied. The average laser power limits for the slabs have been investigated by calculation and experiment..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 507 (1991)
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Far-field characteristics of 3-channel radio-frequency excited waveguide CO
2
laser
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, we analysed theoretically the far-field characteristics of the radio-frequency excited waveguide CO2 laser array, and demonstrated the theoretical results using our RF CO2 laser array (CW 35 W). Several parameters have been measured including the far-field intensity profile and the beam divergence angle.
In this paper, we analysed theoretically the far-field characteristics of the radio-frequency excited waveguide CO2 laser array, and demonstrated the theoretical results using our RF CO2 laser array (CW 35 W). Several parameters have been measured including the far-field intensity profile and the beam divergence angle. The experimemental results ara in agreement with the theory..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 511 (1991)
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Visible optical parametric oscillator with BBO crystal
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Experimental results of crystal BBO optical parametric oscillator (OPO) pumped by the third harmonic of a ns Nd:YAG laser are presented. The signal wave conversion efficiency of 26.6% at 650nm has been achieved, continuosly tunable range being from 480 nm to 720 nm.
Experimental results of crystal BBO optical parametric oscillator (OPO) pumped by the third harmonic of a ns Nd:YAG laser are presented. The signal wave conversion efficiency of 26.6% at 650nm has been achieved, continuosly tunable range being from 480 nm to 720 nm..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 517 (1991)
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Generation of stimulated electron radiation by ionizationrecombination processes following two-photonresonant excitation
[in Chinese], [in Chinese], and [in Chinese]
By two-photon resonant exciting Li-atoms to 4 s state, a series of stimulated and coherent radiation lines were generated, also observed were the transition from continued energy-level to 3 s state. The populated mechanisms and radiation properties were discussed and it is considered that stimulated radiations from ind
By two-photon resonant exciting Li-atoms to 4 s state, a series of stimulated and coherent radiation lines were generated, also observed were the transition from continued energy-level to 3 s state. The populated mechanisms and radiation properties were discussed and it is considered that stimulated radiations from indirect-pumped energy-level were generated by ionization recombination processes following two-photon resonant excitation..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 527 (1991)
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Experimental research of electro-optic effect in BSO crystals
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The electro-optic effect of BSO crystals exhibiting optical rotation is studied. By means of compensation of electro-optic effect with natural rotation and function of modulation degree, the half-wave voltage of BSO crystals which are produced in different conditions is measured.
The electro-optic effect of BSO crystals exhibiting optical rotation is studied. By means of compensation of electro-optic effect with natural rotation and function of modulation degree, the half-wave voltage of BSO crystals which are produced in different conditions is measured..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 531 (1991)
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A diode laser spectroscopic study of the SF
6
V
2
+V
4
combination band
[in Chinese], [in Chinese], and [in Chinese]
The high resolution spectrum of SF6 v2+v4 combination baud was recorded with a LS-3 diode laser spectrometer. The transitions, with changes in nuclear rotational momentum were observed for the first time in heavy spharical to ps.
The high resolution spectrum of SF6 v2+v4 combination baud was recorded with a LS-3 diode laser spectrometer. The transitions, with changes in nuclear rotational momentum were observed for the first time in heavy spharical to ps..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 535 (1991)
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Experimental results of glass and YAG laser rods longer than their ellipsoidal pump cavities
[in Chinese]
The experimental results of glass and YAG laser rods longer than thier ellip-osidal pump cavities are presented.
The experimental results of glass and YAG laser rods longer than thier ellip-osidal pump cavities are presented..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 556 (1991)
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Laser enhanced ionization spectrometry and trace analysis of rare-earth element samarium (Sm)
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Laser enhanced ionization (LEI) spectrometry of rare-earth element samarium (Sm) excited by tunable dye (Rhodamine 6G) laser pumped by YAG laser has been researched and 13 spectral lines are detected for the first time. The detection limits of LEI gpectrometry are better than AA (amotic absorption) in flame and ICP-AES
Laser enhanced ionization (LEI) spectrometry of rare-earth element samarium (Sm) excited by tunable dye (Rhodamine 6G) laser pumped by YAG laser has been researched and 13 spectral lines are detected for the first time. The detection limits of LEI gpectrometry are better than AA (amotic absorption) in flame and ICP-AES. The lowest detection limit obtained is 2 ng/ml..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 558 (1991)
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Materials and Thin Films
Optimum design and preparation of multi-layered magneto-optical recording media
[in Chinese], and [in Chinese]
A new method for the computation of optical performance for magneto-optical (MO) multilayer structure was derived. It can be used in calculating the optical performance of MO multilayer structure containing one or more magnetic layers, such as reflectivity, Kerr rotation and elliptieity. The method has been applied to
A new method for the computation of optical performance for magneto-optical (MO) multilayer structure was derived. It can be used in calculating the optical performance of MO multilayer structure containing one or more magnetic layers, such as reflectivity, Kerr rotation and elliptieity. The method has been applied to design and prepare MO recording media with bilayer structure..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 18, Issue 7, 549 (1991)
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