Coherent light generators – Particular active media – Semiconductor
Patent
1980-02-29
1982-11-30
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
357 17, 357 41, 372 45, H01S 319
Patent
active
043618871
ABSTRACT:
A semiconductor laser light emitting element comprises a semiconductor substrate, a laminate region of semiconductor layers having at least a first, a second and a third semiconductor layer formed over the substrate and having a p-n junction defined therein. The first and third semiconductor layers have smaller refractive indices and greater forbidden band gaps than the second semiconductor layer and are opposite in conductivity type to each other. Provided are on the substrate a field effect transistor section having first and second electrodes and a gate electrode disposed between the first and second electrodes, a means for serving as an optical resonator for emitting light in the lengthwise direction of the p-n junction. A means is formed on one surface of the laminate region for injecting current into the third semiconductor layer, the current injection means is short-circuited with the first electrode of the field transistor section and a means is formed on the substrate for receiving the current injected from the current injecting means.
REFERENCES:
patent: 4065729 (1977-12-01), Gover et al.
patent: 4212020 (1980-02-01), Yariv et al.
Fang et al., "Integrated Optoelectronic Display System" IBM Technical Disclosure Bulletin, vol. 19, No. 6, Nov, 1976, pp. 2340-2341.
Casey et al., "III-V Binary and Quaternary Lattice-Matching Systems for Hetero-Structure Lasers", Heterostructure Lasers, H. C. Casey, Jr. et al., .COPYRGT.1978, pp. 32-48.
Ury et al., "Monolithic Integration of an Injection Laser and a Metal Semiconductor Field Effect Transistor Appl. Phys. Lett. 34(7), Apr. 1, 1979, pp. 430-431.
Fukuzawa et al., "Monolithic Integration of a GaAlAs Injection Laser with a Schottky-Gate Field Effect Transistor", Appl. Phys. Lett. vol. 36, No. 3, Feb. 1, 1980, pp. 181-183.
Fukuzawa Tadashi
Hirao Motohisa
Nakamura Michiharu
Umeda Jun-ichi
Yamashita Shigeo
Davie James W.
Hitachi , Ltd.
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