Journals >Chinese Journal of Lasers
Contents
1984
Volume: 11 Issue 3
21 Article(s)
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Research Article
Laser Devices and Laser Physics
Correction to the beat frequency for laser gyroscopes
Deng Ximing, Fang Honglie, and Chen Zezun
Beat frequency of a laser gyro is analyzed by means of the hydrodynamic model [1-3] of an electromagnetic field, the modified formula of the beat frequency △v=4A/λp (1 - EG)Ω has been obtained.Beat frequency of a laser gyro is analyzed by means of the hydrodynamic model [1-3] of an electromagnetic field, the modified formula of the beat frequency △v=4A/λp (1 - EG)Ω has been obtained..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 129 (1984)
Measurement of thermal distortion and thermal aberration reproduction time of high-power laser rod amplifiers
Yu Wenyan, Zheng Yuxia, Li Xiaoping, and Yu Haochun
This paper reports the measurement result on the pumping thermal distortion of Nd glass rod amplifiers of different sizes with holographic interfernce method. The distortion of active medium reproduction process has been observed. It provides the evidence for selecting operation cycle of the laser system and design parThis paper reports the measurement result on the pumping thermal distortion of Nd glass rod amplifiers of different sizes with holographic interfernce method. The distortion of active medium reproduction process has been observed. It provides the evidence for selecting operation cycle of the laser system and design parameters..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 135 (1984)
Testing aspheric surfaces with interference type computer-generated holograms
An Peijian, Liu Shuzhen, Gui Huaigu, and Li Qinxue
Starting from the basic equation of off-axial reference beam holograms, this paper describes the interference type computer-generated holograms and discusses their features in terms of both wide and narrow fringes and gives the test results. Besides, the authors pointed out the reasonable range of the approximate calcuStarting from the basic equation of off-axial reference beam holograms, this paper describes the interference type computer-generated holograms and discusses their features in terms of both wide and narrow fringes and gives the test results. Besides, the authors pointed out the reasonable range of the approximate calculation of the wave aberration and gave three sets of practical test results. It has been shown experimentally that the interferogram of the wavefronts of (-1, 0) orders is the same as that of (0, +1). The explanation for it is given as well..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 140 (1984)
SHG correlation measurement of picosecond pulses from a tunable dye laser
Xu Bingde, Tie Ziqing, and Liang Guiyun
Two kinds of wavelength tuning schemes are discussed for SHG correlation measurement. The measurements of pulsewidth are performed by SHG correlation method for the actively and passively mode-locked CW rhodamine 6G ring laser.Two kinds of wavelength tuning schemes are discussed for SHG correlation measurement. The measurements of pulsewidth are performed by SHG correlation method for the actively and passively mode-locked CW rhodamine 6G ring laser..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 145 (1984)
Evaluation of imaging quality of holographic lenses
Xu Kunxian
The classical optical transfer function is used to evaluate the imaging quality of holographic lenses with aberrations. The calculation results of OTF of holographic lenses having the third order monochromatic aberrations have been obtained. The function of OTF of holographic lenses in evaluating the imaging quality isThe classical optical transfer function is used to evaluate the imaging quality of holographic lenses with aberrations. The calculation results of OTF of holographic lenses having the third order monochromatic aberrations have been obtained. The function of OTF of holographic lenses in evaluating the imaging quality is analyzed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 150 (1984)
Experimental study on electron density of pulsed discharge and U. V. photoionization
Xie Peiliang, Wang Yuzhi, Dong Jingxing, Wang Fengyun, and Zhang Xigang
The electron density of afterglow of pulsed discharge and the electron density of U. V. photoionization in the TEA CO2 laser, HF laser mixtures have been studied by using an X-band superheterodyne microwave interferometer. The formulas of microwave phase shift introduced by the non-uniform plasma are derived.The electron density of afterglow of pulsed discharge and the electron density of U. V. photoionization in the TEA CO2 laser, HF laser mixtures have been studied by using an X-band superheterodyne microwave interferometer. The formulas of microwave phase shift introduced by the non-uniform plasma are derived..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 154 (1984)
Study on oscillation characteristics of laser resonators
Jin Deyun, Chen Shizhao, and Huang Guosong
In this paper we analyse the physical moaning of the eigenvalues and eigenvectors of the linear-transfomation and discuss the oscillation characteristics of the resonator, explain the differences and relationship among various types of the resonators and indicate that the variation from the Gaussian standing-wave resonIn this paper we analyse the physical moaning of the eigenvalues and eigenvectors of the linear-transfomation and discuss the oscillation characteristics of the resonator, explain the differences and relationship among various types of the resonators and indicate that the variation from the Gaussian standing-wave resonator to the point-light-beam travelling-wave one is a radios change of the spotsize at the output mirror of the resonator from a finite value to an infinite one in substance. Finally the experimental results are compared with the above-mentioned theory..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 159 (1984)
Application of filtering technique to the coherent detection of laser light
Wang Yutang, and Fan Xiaoquan
A Mach-Zehnder interferometer with imaging system and the application of filtering technique to the coherent detection of laser light are presented. Amplitude and phase filtering by mechanical instrument of high reposition accuracy and the experimental results are given.A Mach-Zehnder interferometer with imaging system and the application of filtering technique to the coherent detection of laser light are presented. Amplitude and phase filtering by mechanical instrument of high reposition accuracy and the experimental results are given..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 166 (1984)
Single pulse selector for high repetition rate mode-locked lasers
Li Yongchun, Gu Shengru, Lu Guoxian, Qian Lingxing, Zhao Longxin, and He Huijuan
We report here a single pulse selector which is a high voltage pulsed switch using a Blumlein circuit and a krystron with either electric triggeror laser light trigger. A Poekels cell is made of longitudinal z-eut LiNbO3. The switching efficiency is about 50%. The light extinction ratio is more than 1000:1. The halfwavWe report here a single pulse selector which is a high voltage pulsed switch using a Blumlein circuit and a krystron with either electric triggeror laser light trigger. A Poekels cell is made of longitudinal z-eut LiNbO3. The switching efficiency is about 50%. The light extinction ratio is more than 1000:1. The halfwave voltage is 3.2kV, delay time of the switch is 30-60ns. The device has operated for a long time at a repetition rate of 10 Hz with reliable performances..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 170 (1984)
Two dimensional laser Doppler vibrometer with a grating modulator
Sun Tusheng, Tang Kaiyuan, and Zhang Zidong
This paper describes the principle structure and operation process of a two dimensional laser Doppler vibrometer. The test shows that two dimensional planar vibration as well as the movement in two dimensional plane can be satisfactorily measured by thin device.This paper describes the principle structure and operation process of a two dimensional laser Doppler vibrometer. The test shows that two dimensional planar vibration as well as the movement in two dimensional plane can be satisfactorily measured by thin device..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 173 (1984)
Double annular aperture method for laser speckle interference photography
Zhao Dexin, and Luo Qingchang
A double annular aperture method is put forward with which the authors recorded the processes of laser speckle photography. The distribution of light intensity in the diffracted halo of the picture of laser speckle are calculated and the pictures of Young’s fringes with higher quality are given.A double annular aperture method is put forward with which the authors recorded the processes of laser speckle photography. The distribution of light intensity in the diffracted halo of the picture of laser speckle are calculated and the pictures of Young’s fringes with higher quality are given..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 176 (1984)
Interaction of pulsed infrared laser with surfaces of some materials and its application
Zhuang Dounan, and Lin Yinyi
This paper describes the visible luminescence from the surfaces of some materials irradiated by 1. 06, 1. 32, 10. 6 and 16 μm laser pulses.This paper describes the visible luminescence from the surfaces of some materials irradiated by 1. 06, 1. 32, 10. 6 and 16 μm laser pulses..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 180 (1984)
One dimensional measurment of laser field profiles by CCD
Zhou Fuzheng, Zhu Qingchun, Qiu Qiujin, Ma Li, and Gu Chunming
The principle of laser measurment by CCD is described and its linear range measured. A synchronous trigger has been developed and the automatic measurment for one dimensional field pronle of laser realized.The principle of laser measurment by CCD is described and its linear range measured. A synchronous trigger has been developed and the automatic measurment for one dimensional field pronle of laser realized..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 183 (1984)
Optically pumped tunable CF4 laser
[in Chinese], [in Chinese], and [in Chinese]
We got eight lines at 16 μ/m by using tunable DV preionized-TEA CO2 laser topump CF4 gas which was frozen with dry-ice.We got eight lines at 16 μ/m by using tunable DV preionized-TEA CO2 laser topump CF4 gas which was frozen with dry-ice..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 186 (1984)
[in Chinese]
[in Chinese], and [in Chinese]
In this paper, we report the study of Ohmic contact of p-GaAs andp-InP using sputtered Ti/Pt film. Ohmic contacts are very stable in the temperature range of 300-500℃ for alloying. The lifetime of the GaAs/GaAlAs laser made by this method has exceeded 6000 hours.In this paper, we report the study of Ohmic contact of p-GaAs andp-InP using sputtered Ti/Pt film. Ohmic contacts are very stable in the temperature range of 300-500℃ for alloying. The lifetime of the GaAs/GaAlAs laser made by this method has exceeded 6000 hours..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 187 (1984)
[in Chinese]
[in Chinese]
The paper describes the experimental techniques for constructing and measuring λ/4 wave plates by laser, and gives the experimental results.The paper describes the experimental techniques for constructing and measuring λ/4 wave plates by laser, and gives the experimental results..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 189 (1984)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 190 (1984)
[in Chinese]
[in Chinese], and [in Chinese]
To obtain an output of stable frequency and mode corrugate pipe is necessary for a gas laser using dispersion component for frequency selection. The reduced corrugation is estimated.To obtain an output of stable frequency and mode corrugate pipe is necessary for a gas laser using dispersion component for frequency selection. The reduced corrugation is estimated..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 190 (1984)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 191 (1984)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 3, 191 (1984)
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