Apparatus for and method of controlling output of a laser diode

Details Apparatus for and method of controlling output of a laser diode Apparatus for and method of controlling output of a laser diode

2005-05-24

2005-05-24

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038070, C372S038100, C372S029010, C372S038010, C372S029011, C372S029020, C369S116000

Reexamination Certificate

active

06898223

ABSTRACT:
An apparatus for and a method of controlling an output of a laser diode in an optical recording/reproducing apparatus. The apparatus includes a sampling circuit sampling a present power value output from the laser diode with a predetermined frequency, an arithmetic unit connected to the sampling circuit, outputting a control power value applied to the laser diode in response to the present power value output from the sampling circuit and a reference power value, and a controller connected to the sampling circuit and the arithmetic unit, generating control signals, which control the operations of the sampling circuit and the arithmetic unit.

REFERENCES:
patent: 4685097 (1987-08-01), van der Put
patent: 4796250 (1989-01-01), Kobayashi et al.
patent: 4855988 (1989-08-01), Shinbayashi et al.
patent: 5111447 (1992-05-01), Yamashita et al.
patent: 5446719 (1995-08-01), Yoshida et al.
patent: 5991325 (1999-11-01), Ohtomo et al.
patent: 6222814 (2001-04-01), Ichimura
patent: 62149033 (1987-07-01), None
patent: 1998-78070 (1998-11-01), None
patent: 10-0200819 (1999-06-01), None

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