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RSS1988 Vol. 12, No. 4
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1988, 12(4): 1-4.
[Abstract]
[PDF 218KB]
Abstract:
The multiplication noise current spectrum of avalanche photodiode and equivalent input noise current spectrum are briefly introduced. First,a short discussion of the temperature effect factors for avalanche photodiode has been made,giving stable methods.Finally,optimum stable bias circuit design is studied as well.
The multiplication noise current spectrum of avalanche photodiode and equivalent input noise current spectrum are briefly introduced. First,a short discussion of the temperature effect factors for avalanche photodiode has been made,giving stable methods.Finally,optimum stable bias circuit design is studied as well.
1988, 12(4): 5-7.
Abstract:
The viscosity and thermooptic characteristics of the laser dye solution which effect lasers output stability and linewidth are discussed. The paper proposes firstly the preparation method and expermental result of the temperature vatiation resistant laser dye solution.Its viscosity remains constant within a temperature variation of 18～40℃.
The viscosity and thermooptic characteristics of the laser dye solution which effect lasers output stability and linewidth are discussed. The paper proposes firstly the preparation method and expermental result of the temperature vatiation resistant laser dye solution.Its viscosity remains constant within a temperature variation of 18～40℃.
1988, 12(4): 8-12.
Abstract:
Single transverse-mode and single longitudinal-mode stabilized AlxGa1-xAs CSP visible semiconductor laser is fabricated by means of liquid phase epitaxial method at the temperature of 780℃.The wavelength is 7500A.The four-layer leaky waveguide mechanism is analyzed by perturbation method also.
Single transverse-mode and single longitudinal-mode stabilized AlxGa1-xAs CSP visible semiconductor laser is fabricated by means of liquid phase epitaxial method at the temperature of 780℃.The wavelength is 7500A.The four-layer leaky waveguide mechanism is analyzed by perturbation method also.
1988, 12(4): 13-16,20.
Abstract:
In this paper an algorithm of computer program for optical field analysis of semiconductor laser is derived using two techniques of the effective dielectric constant method and the equivalent transmission line method.And computer program flow chart is also given.
In this paper an algorithm of computer program for optical field analysis of semiconductor laser is derived using two techniques of the effective dielectric constant method and the equivalent transmission line method.And computer program flow chart is also given.
1988, 12(4): 17-20.
Abstract:
The ceramic optical condenser of diffusion type is reported.The characteristic features,development processes,test results and experimental data of this new condenser are introduced in detail.
The ceramic optical condenser of diffusion type is reported.The characteristic features,development processes,test results and experimental data of this new condenser are introduced in detail.
1988, 12(4): 21-26.
Abstract:
This paper estimates the sensitivity of several typical laser rangefin ders in the ship-based fire control-systems of the foreign navies,according to their extinction or part paramoters.Thus we can verify their operating ranges and can calculate the operating ranges to the antiwarship missile which seetion area is 0.1m2 and to the attack plane which section area is 2m2 under any definite visibility.
This paper estimates the sensitivity of several typical laser rangefin ders in the ship-based fire control-systems of the foreign navies,according to their extinction or part paramoters.Thus we can verify their operating ranges and can calculate the operating ranges to the antiwarship missile which seetion area is 0.1m2 and to the attack plane which section area is 2m2 under any definite visibility.
1988, 12(4): 27-31.
Abstract:
Design of the optical system for figuring beam of laser with Gauss destribution is described.An example of the optical system with He-Ne laser is introduced.
Design of the optical system for figuring beam of laser with Gauss destribution is described.An example of the optical system with He-Ne laser is introduced.
1988, 12(4): 32-36.
Abstract:
1988, 12(4): 37-43.
Abstract:
The study and development process of laser angioplasty(LA)are reviewed.A comparison between LA and traditional CABG and PTCA is made.Experimental equipments and process of clinical experimental operation are introduced.Several important problems which impede development are discussed.
The study and development process of laser angioplasty(LA)are reviewed.A comparison between LA and traditional CABG and PTCA is made.Experimental equipments and process of clinical experimental operation are introduced.Several important problems which impede development are discussed.
1988, 12(4): 44-48,52.
Abstract:
In this paper,some achievements of laser surface alloying of carbon steels with chromium in foreign coutries were reviewed. The contents include:the increase degrees of properties of alloyed layers,the homogenizing mechanisms of alloying elements and the structure features of alloyed layers and so on.
In this paper,some achievements of laser surface alloying of carbon steels with chromium in foreign coutries were reviewed. The contents include:the increase degrees of properties of alloyed layers,the homogenizing mechanisms of alloying elements and the structure features of alloyed layers and so on.
1988, 12(4): 49-52.
Abstract:
Designs,preparations and measurements of metal mixture film saving energy with effect of "warm in winter and cool in summer" are reported.
Designs,preparations and measurements of metal mixture film saving energy with effect of "warm in winter and cool in summer" are reported.
