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RSS1989 Vol. 13, No. 5
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1989, 13(5): 1-4.
[Abstract]
[PDF 298KB]
Abstract:
We report the generation of 45 fs light pulses from the CPM femtosecond laser. The optimized laser design provides the steady and reliable laser operation. Laser parameters are also reported.
We report the generation of 45 fs light pulses from the CPM femtosecond laser. The optimized laser design provides the steady and reliable laser operation. Laser parameters are also reported.
1989, 13(5): 5-10.
Abstract:
This paper discusses interaction between laser and transparent-materiai after the laser-beam irradiated on the model-target. Analyzed several damage-factors of the model-targets. The experimental-set and photos of model-targets are given.
This paper discusses interaction between laser and transparent-materiai after the laser-beam irradiated on the model-target. Analyzed several damage-factors of the model-targets. The experimental-set and photos of model-targets are given.
1989, 13(5): 11-14.
Abstract:
Influence of structure parameters on power, threshold and beam width of SCH laser are theoretically and experimentally studied optimum design parameters have been obtained.
Influence of structure parameters on power, threshold and beam width of SCH laser are theoretically and experimentally studied optimum design parameters have been obtained.
1989, 13(5): 15-21.
Abstract:
This paper recount the research purpose and technology require of space quantizing preamplifier package, and it's major parameter is analyzed and calculated. Some particuler problem met when array photodetector match with preamplifier is solved.
This paper recount the research purpose and technology require of space quantizing preamplifier package, and it's major parameter is analyzed and calculated. Some particuler problem met when array photodetector match with preamplifier is solved.
1989, 13(5): 22-28.
Abstract:
The selection of parameters for mini TEA CO2 laser is analysed. The experimental results for mini ceramic sealed-off TEA CO2 laser are given. The size of the device is φ62×190mm, the output energy of TEA00 mode 20mJ, pulse width 50ns, the operation life 106 times, the shelf life is longer than 10 years. The experiment in which the laser is mounted in a CO2 laser rangefinder has been carried out over one year. The experiment shows the perfermance of the laser is reliable and stable.
The selection of parameters for mini TEA CO2 laser is analysed. The experimental results for mini ceramic sealed-off TEA CO2 laser are given. The size of the device is φ62×190mm, the output energy of TEA00 mode 20mJ, pulse width 50ns, the operation life 106 times, the shelf life is longer than 10 years. The experiment in which the laser is mounted in a CO2 laser rangefinder has been carried out over one year. The experiment shows the perfermance of the laser is reliable and stable.
1989, 13(5): 29-35.
Abstract:
The basic methods for measuring light pulse profile, fluorescence klinetics, time-resolved and space-resolved spectra using a streak camera system were summarized and their suitable rangs were allso discussed in this paper.
The basic methods for measuring light pulse profile, fluorescence klinetics, time-resolved and space-resolved spectra using a streak camera system were summarized and their suitable rangs were allso discussed in this paper.
1989, 13(5): 35-40.
Abstract:
The characteristics and advantages of laser sputtering method for making high temperature surperconducting film are reviewed. The basic mechanism of sputtering and film growing process is disccused. The wide application prospect of laser technology in low temperature making and micropatterning of high temperature surperconducting film is pointed out.
The characteristics and advantages of laser sputtering method for making high temperature surperconducting film are reviewed. The basic mechanism of sputtering and film growing process is disccused. The wide application prospect of laser technology in low temperature making and micropatterning of high temperature surperconducting film is pointed out.
1989, 13(5): 41-44.
Abstract:
Two stages of stable controlling systems are utilized to inhibit the YAG laser power fluctuation.The frist stage uses back feed of light from laser to control pump supply source so as to make laser self-balanced. The second stage uses electrooptic crystal modulating device further to stabilize laser power. Stable laser radiation power has been obtained with stabilization much better than 0.3% per hour.
Two stages of stable controlling systems are utilized to inhibit the YAG laser power fluctuation.The frist stage uses back feed of light from laser to control pump supply source so as to make laser self-balanced. The second stage uses electrooptic crystal modulating device further to stabilize laser power. Stable laser radiation power has been obtained with stabilization much better than 0.3% per hour.
1989, 13(5): 45-51.
Abstract:
The proceeding from the ABCD law and the q expression of Gassian beams, the oscillator cavity parameters selections of the forced laser and the mode matching between the forced laser and the master laser in injection-locking pulsed dye laser and discussed and the analytic solution are given.
The proceeding from the ABCD law and the q expression of Gassian beams, the oscillator cavity parameters selections of the forced laser and the mode matching between the forced laser and the master laser in injection-locking pulsed dye laser and discussed and the analytic solution are given.
1989, 13(5): 52-54.
Abstract:
The effect of the mirror on the polarized light is briefly described. The difficulty that the half-wave dealy voltage in a crystal sheet can not be measured by the single optical-path method in the presence of birefringence phenomenon, which can be solved by using the reflective method.
The effect of the mirror on the polarized light is briefly described. The difficulty that the half-wave dealy voltage in a crystal sheet can not be measured by the single optical-path method in the presence of birefringence phenomenon, which can be solved by using the reflective method.
1989, 13(5): 55-61.
Abstract:
In this paper, the expressions of the far-field divergence angles of the elliptical Gaussian beam through a optical system are deduced according to its propagation properties. The collimation characteristics of elliptical Gaussian beam are studied. The place of optical system where the collimating effect should be optimal is demonstrated. And a comparison between elliptical and circular Gaussian beam is made.
In this paper, the expressions of the far-field divergence angles of the elliptical Gaussian beam through a optical system are deduced according to its propagation properties. The collimation characteristics of elliptical Gaussian beam are studied. The place of optical system where the collimating effect should be optimal is demonstrated. And a comparison between elliptical and circular Gaussian beam is made.
1989, 13(5): 61-64.
Abstract:
A comparison of the effect of CO2 laser operation and routine operative method was made. Result show that it yield satisfactory results by the CO2 laser on the clinical processes, treatment. But it is very important to avoid operative complications as the infection of incision, hemorrhage, vessel and nerve injury.
A comparison of the effect of CO2 laser operation and routine operative method was made. Result show that it yield satisfactory results by the CO2 laser on the clinical processes, treatment. But it is very important to avoid operative complications as the infection of incision, hemorrhage, vessel and nerve injury.
