Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-01-25
2008-09-09
Song, Sarah (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
07424183
ABSTRACT:
A collimator array includes a substrate; a plurality of lenses formed on one face of the substrate; and a plurality of projecting parts, each of which is formed on a portion corresponding to the lens on the other face of the substrate, respectively and is fusion-connected to an optical fiber, respectively; wherein an area of the fusion-connected face of the projecting part with respect to the optical fiber is set to be larger than a cross sectional area of the optical fiber. Thereby, it is possible to provide a collimator having fewer variations in an output beam angle and a diameter of an output beam and having excellent strength, and a method for manufacturing the same.
REFERENCES:
patent: 6587618 (2003-07-01), Raguin et al.
patent: 6643068 (2003-11-01), Mandella
patent: 2003/0219213 (2003-11-01), Blarasin et al.
patent: 2004/0213526 (2004-10-01), Inoue et al.
Akio. Tanabe, et al., “Development of Direct Core Monitoring Fusion Splicer S175”, Furukawa Denko Technical Review, vol. 104, Jul. 1999.
Akashi Tamotsu
Aota Hirofumi
Shibata Kohei
Yamamoto Tsuyoshi
Yamashita Shinji
Fujitsu Limited
Song Sarah
Staas & Halsey , LLP
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