Optical transmitter

Details Optical transmitter Optical transmitter

2010-04-30

2011-11-29

Sedighian, M. R. (Department: 2613)

Optical communications

Transmitter

C398S201000, C398S085000

Reexamination Certificate

active

08068744

ABSTRACT:
In an optical transmitter comprising a directly modulated laser and a wavelength filter provided on a post-stage of the directly modulated laser, the wavelength filter has a modulated light input port for inputting modulated light output from the directly modulated laser, a filter transmitted light output port for outputting light having a wavelength included in a filter transmission band among the modulated light as filter transmitted light, and a filter cutoff light output port provided separately from the modulated light input port and the filter transmitted light output port and outputting light having a wavelength included in a filter cutoff band among the modulated light as filter cutoff light, and the peak of the filter transmission band is set on a shorter-wave side from the peak of the spectrum of modulated light output from the directly modulated laser.

REFERENCES:
patent: 5373383 (1994-12-01), LaGasse
patent: 6393185 (2002-05-01), Deacon
patent: 6850713 (2005-02-01), Kikuchi et al.
patent: 6931215 (2005-08-01), Fukuda et al.
patent: 7376356 (2008-05-01), Madsen
patent: 7738794 (2010-06-01), Akiyama et al.
patent: 2002/0131470 (2002-09-01), Eggleton et al.
patent: 2002/0171900 (2002-11-01), Ono et al.
patent: 2003/0095736 (2003-05-01), Kish, Jr. et al.
patent: 2003/0128984 (2003-07-01), Oberg et al.
patent: 62-1007 (1987-05-01), None
patent: 62-100706 (1987-05-01), None
patent: 2-198235 (1990-08-01), None
patent: 4-343283 (1992-11-01), None
patent: 2002-169131 (2002-06-01), None
patent: 2002-258083 (2002-09-01), None
patent: 2003-513328 (2003-04-01), None
patent: 2003-298525 (2003-10-01), None
patent: 2004-157192 (2004-06-01), None
European Search Report dated Feb. 23, 20107.
D. Mahgerefteh, et al.; “Error-free 250 km transmission in standard fibre using compact 10 Gbit/s chirp-managed directly modulated lasers (CML) at 1550 nm;”Electronics Letters; vol. 41; No. 9; Apr. 28, 2005 (2 Sheets.) Discussed in the specification.
Japanese Office Action issued in corresponding Japanese patent application No. 2005-330372 dated Feb. 24, 2009—Notice of Reasons of Rejection with English translation.

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