Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1989-04-11
1991-01-15
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
455601, 455605, H01J 3150
Patent
active
049856219
ABSTRACT:
An electrooptical switch for modulating a bias light beam in response to a control beam. The switch includes a modulator for modulating the bias beam to produce an output light beam therefrom, the modulator having a variable transmissivity; a detector module for receiving the control beam and generating a control signal therefrom, the detector module exhibiting switching operation in response to the control beam; and an amplifier for amplifiying the control signal to modulate the transmissivity of the modulator.
REFERENCES:
patent: 4577189 (1986-03-01), Adolfsson et al.
patent: 4754132 (1988-06-01), Hinton et al.
patent: 4782223 (1988-11-01), Suzuki
patent: 4800262 (1989-01-01), Lentine
Sakaki et al., "Novel Quantum-Well Optical Bistability Device with Excellent On/Off Ratio and High Speed Capability," Electronics Letters, vol. 24, p. 1 (1988).
Miller et al., "The Quantum Well Self-Electrooptic Effect Device: Optoelectronic Bistability and Oscillation, and Self-Linearized Modulation," IEEE Journal of Quantum Electronics, vol., QE-21, No. 9, Sep. 1985, pp. 1462-1476.
Aull Brian F.
Nichols Kirby B.
Sollner T. C. L. Gerhard
Le Que Tan
Massachusetts Institute of Technology
Nelms David C.
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