Fiber optic receiver and amplifier

Details Fiber optic receiver and amplifier Fiber optic receiver and amplifier

1989-11-15

1992-03-10

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including atomic particle or radiant energy impinging on a...

250214A, H03F 308

Patent

active

050952862

ABSTRACT:
An electronic receiver circuit for receiving and amplifying optical signals is disclosed. The optical signal is applied to a photodiode which generates a current signal that passes through a source load with a high resistance or impedance relative to the impedances associated with the desired bandwidth of the optical signal. The current signal is amplified and buffered by an amplifier circuit which can drive low output impedances while maintaining the proper voltage level on the high impedance source load. The receiver circuit also maintains a wide signal bandwidth from RF to microwave frequencies, holds pre-amplifier distortion to very low levels and still yields a high signal-to-noise ratio.

REFERENCES:
patent: 4139767 (1979-02-01), Witkowicz
patent: 4761549 (1988-08-01), Mealer, III et al.
patent: 4764732 (1988-08-01), Dion
Anson et al., "Versatile Precision Source Ratioing System for Fast Kinetic Spectroscopy", Review of Scientific Instruments, vol. 47, No. 3, pp. 370-373, Mar. 1976.
Hullett et al., A Feedback Receive Amplifier for Optical Transmission Systems, IEEE Transactions on Communications, Oct. 1976.
Catalog description PD050-PM, RSL-50, High Speed Fiber-Pigtailed GaAs, Ortel Corp., (4 pp.).
Catalog description PD050-OM, Photodiode, Ortel Corp., (4 pp.).

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