Optical module

Details Optical module Optical module

2007-10-30

2007-10-30

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S029011, C372S038010, C372S032000, C372S029021

Reexamination Certificate

active

10992291

ABSTRACT:
The object of the present invention is to provide an optical module for the WDM communication system, in which the oscillation wavelength is on the grid of the WDM regulation, moreover the optical output power and the oscillation wavelength can be controlled independently. The present module comprises a semiconductor light-emitting device, a wedge shaped etalon device and two light-receiving devices. The etalon device contains a first portion, on which the anti-reflection films are coated, and a second portion. One of the receiving devices detects light transmitted through the first portion of the etalon device, while the other device detects light through the second portion. Signal from the former device controls the output power of the light-emitting device, while the signal from the latter receiving device controls the oscillation wavelength of the laser.

REFERENCES:
patent: 5825792 (1998-10-01), Villeneuve et al.
patent: 6046813 (2000-04-01), Naganuma
patent: 6151114 (2000-11-01), Russell
patent: 6345060 (2002-02-01), Copner et al.
patent: 6366592 (2002-04-01), Flanders
patent: 6487027 (2002-11-01), Yamauchi et al.
patent: 6488419 (2002-12-01), Kato et al.
patent: 6526079 (2003-02-01), Watterson et al.
patent: 6788724 (2004-09-01), Sell et al.
patent: 6836490 (2004-12-01), Shinkai et al.
patent: 6888857 (2005-05-01), Takagi et al.
patent: 2001/0022793 (2001-09-01), Yokoyama
patent: 2002/0018627 (2002-02-01), Kato et al.
patent: 2002/0048299 (2002-04-01), Hyuga et al.
patent: 2002/0159488 (2002-10-01), Wolak et al.
patent: 2003/0039276 (2003-02-01), Tatsuno et al.
patent: 2000-315833 (2000-11-01), None
patent: 2001-284711 (2001-10-01), None
patent: WO95/20144 (1995-07-01), None
Copending U.S. Appl. No. 10/247,818, filed Sep. 20, 2002, entitled Light-Emitting Module.
Copending U.S. Appl. No. 10/247,817, filed Sep. 20, 2002, entitled Optical Module.

Affiliated with

Also associated with

Rating

Optical module does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical module, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical module will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3897865