Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2007-08-28
2007-08-28
Pak, Sung (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S142000
Reexamination Certificate
active
10960013
ABSTRACT:
Two or more optical waveguides are placed in a treatment vessel. The optical waveguides in the treatment vessel are treated with a chemical substance containing at least one of deuterium, hydrogen, and a compound thereof. The treating includes causing molecules of the chemical substance to diffuse into the optical waveguides, causing the molecules of the chemical substance that have diffused into the optical waveguides to react with structural defects that exist in a portion, through which light propagates, of the optical waveguides, and removing from the optical waveguides molecules of the chemical substance that do not react with the structural defect.
REFERENCES:
patent: 6311524 (2001-11-01), Brennan et al.
patent: 6334018 (2001-12-01), Fokine
patent: 6622527 (2003-09-01), Schotz et al.
patent: 6704485 (2004-03-01), Campion et al.
patent: 6776012 (2004-08-01), Chang et al.
patent: 6817213 (2004-11-01), Ishida
patent: 7079736 (2006-07-01), Takahashi et al.
patent: 2002/0090183 (2002-07-01), Tuminaro
patent: 2002-148450 (2002-05-01), None
Y. Namihira, et al., “Hydrogen Problems in Optical Fibers”, The Institute of Electronics, Information and Communication Engineers (IEICE), CS-84, 1984, pp. 27-34 (with partial English translation).
R. W. Lee, et al., “Diffusion of Hydrogen and Deuterium in Fused Quartz”, The Journal of Chemical Physics, vol. 36, No. 4, Feb. 15, 1962, pp. 1062-1071.
Akira Iino, et al., “Mechanisms of Hydrogen-Induced Losses in Silica-Based Optical Fibers”, Journal of Lightwave Technology, IEEE, vol. 8, No. 11, Nov. 1990, pp. 1675-1679.
Iino Akira
Kashihara Kazuhisa
Oku Masato
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Pak Sung
The Furukawa Electric Co. Ltd.
LandOfFree
Method of manufacturing optical waveguide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing optical waveguide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing optical waveguide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3867510