Fiber optic article with inner region

Details Fiber optic article with inner region Fiber optic article with inner region

2006-05-23

2009-12-15

Sanghavi, Hemang (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S123000, C385S141000

Reexamination Certificate

active

07634164

ABSTRACT:
A fiber optic article can comprise a core, an inner region disposed about the core and a cladding disposed about the inner region. The index of refraction of the cladding can be less than that of the inner region, and the index of refraction of the inner region can be less than that of the core. The fiber can include a second cladding disposed about the cladding, where the second cladding has an index of refraction that is less than the index of refraction of the cladding. The inner region can have a non circular outer perimeter that includes at least one inwardly oriented section. The article can be elongate along a longitudinal axis and can include at least one longitudinally extending region, such as a stress inducing region, for providing birefringence and the inwardly oriented region can face the longitudinally extending region. The fiber optic article can include active material for providing light responsive to the article receiving pump light, such as, for example, one or more rare earths. The rare earths can include erbium and ytterbium.

REFERENCES:
patent: 3599114 (1971-08-01), Snitzer
patent: 4666247 (1987-05-01), MacChesney
patent: 5225925 (1993-07-01), Grubb
patent: 5259046 (1993-11-01), DiGiovanni
patent: 5485480 (1996-01-01), Kleinerman
patent: 5530710 (1996-06-01), Grubb
patent: 5930436 (1999-07-01), Okamura
patent: 5937134 (1999-08-01), DiGiovanni
patent: 5949941 (1999-09-01), DiGiovanni
patent: 6043930 (2000-03-01), Inagaki
patent: 6175445 (2001-01-01), Desthieux
patent: 6181465 (2001-01-01), Grubb
patent: 6278816 (2001-08-01), Keur
patent: 6385384 (2002-05-01), Wei
patent: 6411762 (2002-06-01), Anthon
patent: 6459846 (2002-10-01), Choi
patent: 6463201 (2002-10-01), Aiso
patent: 6477307 (2002-11-01), Tankala
patent: 6483974 (2002-11-01), Waarts
patent: 6496301 (2002-12-01), Koplow
patent: 6512879 (2003-01-01), Beguin
patent: 6516124 (2003-02-01), Po
patent: 6563995 (2003-05-01), Keaton et al.
patent: 6603598 (2003-08-01), Oliveti
patent: 6608956 (2003-08-01), Soufiane
patent: 6614975 (2003-09-01), Richardson
patent: 6625363 (2003-09-01), Carter
patent: 6687445 (2004-02-01), Carter
patent: 6690868 (2004-02-01), Anderson et al.
patent: 6700697 (2004-03-01), Nikolajsen
patent: 6751388 (2004-06-01), Siegman
patent: 6779364 (2004-08-01), Tankala
patent: 6831834 (2004-12-01), Salmonson
patent: 6836607 (2004-12-01), Dejneka et al.
patent: 6941053 (2005-09-01), Lauzon
patent: 6950586 (2005-09-01), Po
patent: 6954575 (2005-10-01), Fermann
patent: 6959022 (2005-10-01), Sandrock et al.
patent: 7003206 (2006-02-01), Tankala
patent: 7062137 (2006-06-01), Farroni
patent: 7064889 (2006-06-01), Digonnet
patent: 7110647 (2006-09-01), Farroni
patent: 7116887 (2006-10-01), Farroni
patent: 7170909 (2007-01-01), Budni et al.
patent: 2002/0030881 (2002-03-01), Nilsson
patent: 2002/0126974 (2002-09-01), Bayart
patent: 2002/0154874 (2002-10-01), Ahrens
patent: 2003/0031444 (2003-02-01), Croteau et al.
patent: 2003/0152349 (2003-08-01), Lauzon
patent: 2004/0036955 (2004-02-01), Digonnet
patent: 2004/0069019 (2004-04-01), Carter
patent: 2004/0086245 (2004-05-01), Farroni
patent: 2005/0008311 (2005-01-01), Farroni
patent: 2005/0008313 (2005-01-01), Tankala
patent: 2005/0226580 (2005-10-01), Samson
patent: 2005/0271347 (2005-12-01), Kimball et al.
patent: 10211352 (2002-09-01), None
patent: 0918382 (1999-05-01), None
Samson, U.S. Appl. No. 10/820,475 entitled “Optical Fiber for Handling Higher Powers”, filed on Apr. 8, 2004 (published as 2005/0226580 A1).
Farroni, U.S. Appl. No. 10/912,666 entitled “Fiber Optic Article Including Fluorine”, filed on Aug. 5, 2004 (published as 2006/0029344 A1 and issued as 7,062,137).
Fermann, “Efficient Operation of an Yb-Sensitised Er Fibre Laser at 1.56μm”, Electronics Letters, Sep. 1, 1988, vol. 24, No. 18, pp. 1135-1136.
Vienne, “Fabrication and Characterization of Yb3+:Er3+ Phosphosilicate Fibers for Lasers”, Journal of Lightwave Technology, vol. 16, No. 11, Nov. 1998, pp. 1990-2001.
PCT/US05/28032 International Search Report mailed on Aug. 25, 2006.
EP 05857279 Supplementary European Search Report completed on Mar. 7, 2008.
Carter, “The road to kiloWatt fiber lasers”, Proceedings of SPIE, vol. 5350, pp. 172-182.
Tankala, “PM double-clad fibers for high power lasers and amplifiers”, Proceedings of SPIE, vol. 4974, pp. 220-229.

Affiliated with

Also associated with

Rating

Fiber optic article with inner region does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4134029