Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2007-01-09
2007-01-09
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling function
C372S003000, C398S177000
Reexamination Certificate
active
10771426
ABSTRACT:
It is disclosed a pump energy source (20) for providing pump energy (E_p) to an optical transmission system (100) transmitting an optical signal along an optical fiber, in particular an optical transmission system (100) in which a beam of said pump energy (E_p) is introduced to said optical fiber so that said beam of said pump energy (E_p) copropagates with said optical signal.
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patent: 1 111 741 (2001-06-01), None
patent: WO 02 056510 (2002-07-01), None
Patent Abstracts of Japan, Vo. 2002, No. 02, Apr. 2, 2002 corresponding to JP 2001 305594 A (Nippon Telegr) dated Oct. 31, 2001.
F. Roy et al, “Novel pumping schemes for thulium doped fiber amplifier” Optical Fiber Communication Conference (OFC) Technical digest Postconference Edition, Baltimore, MD, Mar. 7-10, 2000, NY, NY IEEE vol. 2 of 4, pp. 14-16, XP002166804.
Alcatel
Font Frank G.
Wong Eric
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