Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1982-02-16
1985-05-21
Moskowitz, Nelson
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
330 43, 372 21, 307425, H01S 310, G02F 128
Patent
active
045189340
ABSTRACT:
An optically integrated bistable device includes a semiconductor junction Fabry-Perot interferometer cavity and a pair of electrodes for applying a reverse-bias voltage to the junction to increase its light absorption. A capacitor is connected between one electrode and ground for eliminating spurious high-speed signals. A resistor is connected in series with the voltage source between the electrodes to decrease the back-bias in response to photocurrent for a negative feedback.
REFERENCES:
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patent: 4012699 (1977-03-01), Gibbs et al.
patent: 4071831 (1978-01-01), Gibbs et al.
patent: 4121167 (1978-10-01), Gibbs et al.
patent: 4196396 (1980-04-01), Smith
patent: 4221472 (1980-09-01), Smith et al.
patent: 4364014 (1982-12-01), Gray
Lai et al., "Optically Induced Bistable . . . Junctions", 1/1/81, pp. 41-44, A. P. L., vol. 38, #1.
"Integrated Bistable Optical Devices", Smith et al., pp. 24-27, A. P. L., vol. 33, #1, 7/1/78.
AT&T Bell Laboratories
Moskowitz Nelson
Ulbrich Volker R.
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