Optical transmitter applicable to burst signal and method...

Details Optical transmitter applicable to burst signal and method... Optical transmitter applicable to burst signal and method...

2011-01-04

2011-01-04

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

Having feedback circuitry

C398S198000

Reexamination Certificate

active

07864826

ABSTRACT:
An optical transmitter and a method to control the transmitter are disclosed, in which the optical output may be substantially maintained even in the inactive state of the input burst signal. The optical transmitter includes the APC feedback control and the detector that senses the active and inactive states of the input burst signal. When the transition to the inactive state is detected, the controller enters the second APC mode in which only the bias current is adjusted so as to maintain the optical output to be a preset value. The normal APC feedback control may be recovered after a preset period from the practical transition of the input burst signal from the inactive state to the active state.

REFERENCES:
patent: 6466595 (2002-10-01), Asano
patent: 7426224 (2008-09-01), Ishibashi
patent: 7783204 (2010-08-01), Ishibashi
patent: 2005/0030985 (2005-02-01), Diaz et al.
patent: 7-273388 (1995-10-01), None
patent: 2000-49715 (2000-02-01), None

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