Fast loop laser diode driver

Details Fast loop laser diode driver Fast loop laser diode driver

2006-02-17

2008-11-25

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038010, C372S038040, C372S038070

Reexamination Certificate

active

07457335

ABSTRACT:
A laser diode driver circuit can comprise fast loop portion and a closed-loop portion. The closed-loop driver portion can provide a part of the current for a laser diode. The closed-loop drive portion output can be independent of a photodetector. The fast-loop driver portion can provide a second part of the current for the laser diode. The fast-loop driver portion can use the output of the photodiode to determine the output of the fast-loop driver portion.

REFERENCES:
patent: 4855988 (1989-08-01), Shinbayashi et al.
patent: 4899344 (1990-02-01), Shibata et al.
patent: 5675600 (1997-10-01), Yamamoto et al.
patent: 5887010 (1999-03-01), Arai
patent: 2003/0160636 (2003-08-01), Fattaruso
patent: 2005/0129075 (2005-06-01), Anderson et al.
International Search Report for PCT/US07/62300, dated Feb. 14, 2008, 7 pages.

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