Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-04-04
2006-04-04
Glick, Edward J. (Department: 2882)
Optical waveguides
With optical coupler
Input/output coupler
C398S087000
Reexamination Certificate
active
07024075
ABSTRACT:
The invention relates to an optical fiber presenting a core, cladding, and a grating written by irradiation and coupling at least one light mode into the cladding so that it is dissipated therein. The invention proposes causing the mean index to vary progressively along the grating, at least at the ends of the grating. The progressive variation in mean index or in the amplitude of index modulation for writing the grating serves to limit insertion losses to the filter formed by the grating. Analogously, in a written-in grating, the invention provides the equivalent of progressively varying the core size of the fiber for interconnecting two optical fibers presenting different core diameters. The invention is applicable in particular to gain-equalizing filters in WDM transmission systems.
REFERENCES:
patent: 5641956 (1997-06-01), Vengsarkar et al.
patent: 5694248 (1997-12-01), Erdogan et al.
patent: 5712715 (1998-01-01), Erdogan et al.
patent: 5740292 (1998-04-01), Strasser
patent: 5852690 (1998-12-01), Haggans et al.
patent: 6021242 (2000-02-01), Harumoto et al.
patent: 6104852 (2000-08-01), Kashyap
patent: 6130973 (2000-10-01), Lauzon et al.
patent: 6253008 (2001-06-01), Harumoto et al.
patent: 6266463 (2001-07-01), Laming et al.
patent: 6321008 (2001-11-01), Riant et al.
patent: 6360038 (2002-03-01), Grubsky
patent: 6404956 (2002-06-01), Brennan et al.
patent: 6574395 (2003-06-01), Mechin et al.
patent: 6842544 (2005-01-01), Eldada
patent: 2003/0107787 (2003-06-01), Bablumyan
patent: 0767391 (1997-04-01), None
patent: 0893712 (1999-01-01), None
De Barros Carlos
Jurczyszyn Michel
Riant Isabelle
Sansonetti Pierre
Artman Thomas R.
Avanex Corporation
Glick Edward J.
Patterson & Sheridan, LLP.
LandOfFree
Reducing insertion losses of a written in grating with mode... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reducing insertion losses of a written in grating with mode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reducing insertion losses of a written in grating with mode... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3610206