Optically bistable photodiode device with voltage control circui

Details Optically bistable photodiode device with voltage control circui Optically bistable photodiode device with voltage control circui

1987-09-21

1988-11-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250213A, H01J 4014

Patent

active

047822236

ABSTRACT:
An improved optically bistable photodiode device comprises a photodiode in which the absorption of light is changed in accordance with a voltage to be applied thereacross, a circuit for amplifying photocurrent flowing through the photodiode, and a bias circuit for controlling the voltage to be applied across the photodiode wherein the incident light supplied to the photodiode is chosen to have a wavelength at which a resonance is produced in an exciton absorption or bandedge absorption where an electric field applied across a multiple quantum well is low so that a optically bistable operation is performed with a high speed response and low consuming power.

REFERENCES:
patent: 3952265 (1976-04-01), Hunsperger
patent: 4565924 (1986-01-01), Misumi et al.
patent: 4588896 (1986-05-01), Abbas
Miller et al., "Novel Hybrid Optically Bistable Switch: The Quantum Well Self-Electro-Optic Effect Device," Appl. Phys. Lett. 45(1), Jul. 1984, pp. 13-15.

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