Laser driving circuit

Details Laser driving circuit Laser driving circuit

1993-12-28

1994-12-27

Epps, Georgia Y.

Coherent light generators

Particular component circuitry

Optical pumping

372 29, 372 26, 372 25, 372 31, H01S 300

Patent

active

053772130

ABSTRACT:
A laser driving circuit that controls an intensity of a laser beam emitted by a laser diode to become a predetermined destination value. The predetermined destination value is shifted to a lower value when at least one of a plurality of predetermined signals is not inputted to the laser driving circuit. The lower value is shifted to the predetermined destination value a predetermined period after all of the predetermined signals have been inputted to the laser driving circuit.

REFERENCES:
patent: 4704677 (1987-11-01), Nagashima et al.
patent: 4744087 (1988-05-01), Nicia
patent: 4748633 (1988-05-01), Negishi
patent: 4757508 (1988-07-01), Zimmerman
patent: 4761659 (1988-08-01), Negishi
patent: 4878225 (1989-10-01), Aiba et al.
patent: 5050177 (1991-09-01), Ema
patent: 5119360 (1992-06-01), Minakuchi
patent: 5153871 (1992-10-01), Minakuchi

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