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Journals >
Chinese Journal of Lasers
Contents
1992
Volume: 19 Issue 12
12 Article(s)
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Research Article
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 931 (1992)
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Measurement of peak power of short light pulses applied in laser spectroscopy
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A dual channel measurement system applied in laser spectroscopy for direct measurement of peak power of short light pulses is reported. The linearities and the frequency responses for both channels are given, and the experimental results indicate that 1% of amplification or absorption in peak power of 10 ns ligjht puls
A dual channel measurement system applied in laser spectroscopy for direct measurement of peak power of short light pulses is reported. The linearities and the frequency responses for both channels are given, and the experimental results indicate that 1% of amplification or absorption in peak power of 10 ns ligjht pulse (FWHM) from the optical medium can be identified by this system..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 903 (1992)
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Biomedical Photonics and Laser Medicine
Animal experiments of myocardlal revasculazation by 100 W CO
2
laser
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, we introduce an advanced method of myocardium punching by laser beam. The experimental results were given on live aninalg in acute phase under the room temperature conditions by 100 watt quasi-CW CO2 laser. The experimental results demonstrate that laser punching in myocardium can rebuild myocardial micr
In this paper, we introduce an advanced method of myocardium punching by laser beam. The experimental results were given on live aninalg in acute phase under the room temperature conditions by 100 watt quasi-CW CO2 laser. The experimental results demonstrate that laser punching in myocardium can rebuild myocardial microciroulation..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 927 (1992)
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Holography and Information Processing
Programmable optical binary dual-rail logic gate
[in Chinese], and [in Chinese]
Based on the dual-rail logic, a cascadable parallel binary logic gate was, proposed. All 16 binary logic operations can be implemented by this gate which can be programmed by halfwave phase retard of polarization. The electrooptical effect is proposed to program the logic function in real time and the experimental resu
Based on the dual-rail logic, a cascadable parallel binary logic gate was, proposed. All 16 binary logic operations can be implemented by this gate which can be programmed by halfwave phase retard of polarization. The electrooptical effect is proposed to program the logic function in real time and the experimental results are also presented..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 911 (1992)
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Efficient read-out holographic storages in Mn.'KNSBN crystal at 632.8 nm and the estimation of ratios of electro-optical tensor elements of crystal
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Reflecting holographic storages with a read-out efficiency of up to 60% are obtained in Mn doped KNSBN crystal by using He-Ne laser beams of uW powers. It is found theoretically and experimentally that high road-out efficiency can be realized with a weak object beam and a stong reference beam in the conditions of our e
Reflecting holographic storages with a read-out efficiency of up to 60% are obtained in Mn doped KNSBN crystal by using He-Ne laser beams of uW powers. It is found theoretically and experimentally that high road-out efficiency can be realized with a weak object beam and a stong reference beam in the conditions of our experiments. The ratios of eletrooptical tensor elements of the crystal are estimated within the range of the constant coupling factor..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 915 (1992)
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Laser Manufacturing
Study on laser-trimmed thick-film platinum resistor
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
We report a thick-film Pt resistor trimmed by an aeousto-optic Q-switched Nd:YAG laser and analyse the 1 laser parameters related with the trimming quality parameters of the film. Some problems with respect to laser-trimmed heat sensitive resistor are discussed.
We report a thick-film Pt resistor trimmed by an aeousto-optic Q-switched Nd:YAG laser and analyse the 1 laser parameters related with the trimming quality parameters of the film. Some problems with respect to laser-trimmed heat sensitive resistor are discussed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 922 (1992)
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Laser Physics
Q-switching of MQW-LD A pumped Nd:YLF laser
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Acousto-optie Q-switching of a homemade MQW-LDA pumped Nd:YLF laser has been xealized. A pulse width of 70 ns, energy of 1 μJ at 100 Hz repetition rate have been obtained. The fluctuation of profile is less than 1%.
Acousto-optie Q-switching of a homemade MQW-LDA pumped Nd:YLF laser has been xealized. A pulse width of 70 ns, energy of 1 μJ at 100 Hz repetition rate have been obtained. The fluctuation of profile is less than 1%..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 881 (1992)
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Unstable resonator Nd:YAG laser with variable reflectivity coupler
[in Chinese], [in Chinese], and [in Chinese]
An unstable resonator Nd:YAG laser with variable reflectivity coupler is developed. The relations between the laser characteristics and the unstable resonator parameters with a variable reflectivity coupler are described.
An unstable resonator Nd:YAG laser with variable reflectivity coupler is developed. The relations between the laser characteristics and the unstable resonator parameters with a variable reflectivity coupler are described..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 886 (1992)
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Characteristic investigation of high stability CPM femtosecond lasers
[in Chinese]
Using optimization method of dynamic parameters, operation behavior of highly table CPM femtosecond laser is obtained. The laser output is 43 fs average pulsewidths with a central wavelength at 624 nm, average power of 20 mW, unstability of pulsewidths of +3.3% and unstability of frequencies of less than 10-6.
Using optimization method of dynamic parameters, operation behavior of highly table CPM femtosecond laser is obtained. The laser output is 43 fs average pulsewidths with a central wavelength at 624 nm, average power of 20 mW, unstability of pulsewidths of +3.3% and unstability of frequencies of less than 10-6..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 891 (1992)
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Numerical simulation of copper vapor laser amplifiers
[in Chinese], [in Chinese], and [in Chinese]
A simplified kinetics model for copper vapor laser amplifiers is described. The gain property, time synchronized characteristics, output power dependence of loss coefficient and the influence of time-delay on pulse distortion values for the amplifier are ootained with numerical simulation. Calculated results are in app
A simplified kinetics model for copper vapor laser amplifiers is described. The gain property, time synchronized characteristics, output power dependence of loss coefficient and the influence of time-delay on pulse distortion values for the amplifier are ootained with numerical simulation. Calculated results are in approximate agreement with the experimental ones..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 895 (1992)
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1560 nm laser emission and superfluorescence from Er-doped silica fiber
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Pumped by 514.5nm Ar ion laser, emission and superfluorescenoe at 1560 nm of Er-doped silica fiber were obtained. The maximum output of fiber laser is 5.4mW, slope efficiency 9.8%. 1.6 mW output was obtained in superfluoreacenoe operation, and the narrowing of fluorescence spectra was also observed.
Pumped by 514.5nm Ar ion laser, emission and superfluorescenoe at 1560 nm of Er-doped silica fiber were obtained. The maximum output of fiber laser is 5.4mW, slope efficiency 9.8%. 1.6 mW output was obtained in superfluoreacenoe operation, and the narrowing of fluorescence spectra was also observed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 900 (1992)
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Study on fluorescent transition channels of the Rydberg state Η
′2
Π
-
of NO molecule
[in Chinese], [in Chinese], and [in Chinese]
Bydberg state H12II- of the NO molecule has been studied by two-photon excitation. Its fluorescent emission spectra were measured and the main transition channel were recognized clearly.
Bydberg state H12II- of the NO molecule has been studied by two-photon excitation. Its fluorescent emission spectra were measured and the main transition channel were recognized clearly..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 19, Issue 12, 906 (1992)
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