Laser modulation controller using NRZ electrical modulation leve

Details Laser modulation controller using NRZ electrical modulation leve Laser modulation controller using NRZ electrical modulation leve

1994-05-11

1995-04-18

Epps, Georgia Y.

Coherent light generators

Particular component circuitry

Optical pumping

372 26, 372 25, 372 29, H01S 300

Patent

active

054084857

ABSTRACT:
A laser modulation controller (10) modulates the operation of a communications laser circuit and controls the NRZ electrical input into the laser circuit. The electrical modulation controller includes a laser circuit driver (20) for generating and driving input signal to the laser circuit (22). A voltage control circuit (18) controls the laser circuit driver (20) in response to a single input (84). A peak voltage detector circuit (24) responds to the voltage output of the driver circuit (20) and produces a peak voltage signal. A comparison circuit (82) compares the peak voltage signal to a reference signal (78 and 70) and produces from the comparison the control signal input (84) to the voltage control circuit (18). Input circuitry (84) directs the control signal to the voltage control circuit (18) to control the laser circuit driver (20).

REFERENCES:
patent: 4757508 (1988-07-01), Zimmerman
patent: 4868836 (1989-09-01), Howard
patent: 5003624 (1991-03-01), Terbrack et al.
patent: 5268916 (1993-12-01), Slawson et al.

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