Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1987-12-31
1989-04-18
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
357 4, 357 16, 357 30, H01J 4014
Patent
active
048229920
ABSTRACT:
Information borne by an optical signal at a first wavelength is transferred intact to another optical signal at a second wavelength and vice versa via an optoelectronic circuit employing quantum well devices connected serially to facilitate self electrooptic effects therein. The optoelectronic circuit accepts two input signals and provides two output signals wherein an input signal and its corresponding output signal are at the same wavelength. Bidirectional information transfer with bidirectional wavelength conversion is permitted by the optoelectronic circuit.
REFERENCES:
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patent: 4546244 (1985-10-01), Miller
H. C. Lee et al., "Electroabsorption in AlGaAs/GaAs Multiple Guantum Well Structures Grown on a GaP Transparent Substrate", Appl. Phys. Lett. 51, 16 Nov. 1987, pp. 1582-1584.
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Bar-Joseph Israel
Chemla Daniel S.
Miller David A. B.
American Telephone and Telegraph Company
AT&T Bell Laboratories
Chatmon Eric
Nelms David C.
Ranieri Gregory C.
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