Optical system for semiconductor laser beam

Details Optical system for semiconductor laser beam Optical system for semiconductor laser beam

1987-04-01

1989-05-23

Corbin, John K.

Coherent light generators

Particular component circuitry

Optical pumping

350402, 372100, 372103, 372106, G02F 101

Patent

active

048324698

ABSTRACT:
An optical system for a semiconductor laser beam comprises a semiconductor laser which generates light comprising both stimulated emission light and spontaneous emissions in accordance with the amount of electric current applied thereto, a convergent lens disposed in the light path of the beam emitted by the semiconductor laser, and an optical element disposed in the light path of the beam from the convergent lens which cuts more spontaneous emission than stimulated emission.

REFERENCES:
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patent: 3492600 (1970-01-01), Zitter
patent: 3504982 (1970-04-01), Robieux
patent: 3774121 (1973-11-01), Ashkin et al.
patent: 3866139 (1975-02-01), Currie
patent: 4009453 (1977-02-01), Mahlein
patent: 4063106 (1977-12-01), Ashkin et al.
patent: 4159453 (1979-06-01), Brandt et al.
patent: 4229073 (1980-10-01), Lotspeich
patent: 4287486 (1981-09-01), Javan
patent: 4399540 (1983-08-01), Bucher
patent: 4500178 (1985-02-01), Yeh
patent: 4549300 (1985-10-01), Mitsuhashi et al.
patent: 4573156 (1986-02-01), Anthony et al.
Kressel et al., Semiconductor Lasers and Heterojunction LEDS, Academic Press, New York, 1977, pp. 51, 70-81, and 94-103.

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