Optical signal transmitter

Details Optical signal transmitter Optical signal transmitter

1996-04-22

1998-01-13

Bovernick, Rodney B.

Coherent light generators

Particular component circuitry

Optical pumping

H01S 300

Patent

active

057086737

ABSTRACT:
An optical transmitter may obtain suitable optical output waveform within a wide temperature range from a semiconductor laser diode with an APC free system. The optical transmitter may be composed of a semiconductor laser diode, a driver circuit operatively connected to the semiconductor laser diode for supplying a bias current and a pulse current corresponding to the level of an input signal to the semiconductor laser diode, a bias current controller operatively connected to the driver circuit for controlling the level of the bias current, a pulse current controller operatively connected to the driver circuit for controlling the level of the pulse current, and a duty variable circuit operatively connected to the driver circuit for setting the duty of the input signal to make the duty of an optical output from the semiconductor laser diode more than 100% at an initial adjustment.

REFERENCES:
patent: 5373518 (1994-12-01), Uchiyama

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