Optoelectronic transceiver module laser diode stabilizer and bia

Details Optoelectronic transceiver module laser diode stabilizer and bia Optoelectronic transceiver module laser diode stabilizer and bia

1998-06-03

2000-01-11

Scott, Jr., Leon

Coherent light generators

Particular component circuitry

Optical pumping

372 31, 323314, H01S 300

Patent

active

RE0364916

ABSTRACT:
A power stabilizer for maintaining a constant level of output power from a laser transmitter. The laser transmitter has a laser diode which produces an optical output which corresponds to the level of bias current received. In addition, the laser transmitter has a photodiode which produces a feedback signal which corresponds to the optical output power being produced by the laser diode. Furthermore, the power stabilizer consists of a digitally controlled potentiometer for producing a reference input signal and an op-amp for comparing the feedback signal and the reference input signal to produce a control signal to supply bias current.

REFERENCES:
patent: 4583009 (1986-04-01), Eng, Jr.
patent: 4665356 (1987-05-01), Pease
patent: 5019769 (1991-05-01), Levinson
patent: 5247532 (1993-09-01), Levinson
XICOR, X9CMME E.sup.2 -POT Digitally Controlled Potentiometer, 1992, pp. 1-3.

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