H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 14/02 (2006.01) G02B 6/34 (2006.01) G02B 6/42 (2006.01)
Patent
CA 2301343
An optical demultiplexer has a plurality of transparent or translucent tubes combined in axially slidably interfitting relationship to each other. An input optical fiber, a collimator lens, and a diffraction grating are mounted on the tubes, preferably on end faces of the tubes. The optical demultiplexer can be assembled for centered alignment by installing the input optical fiber, the collimator lens, and the diffraction grating on the tubes, and sliding the tubes relatively to each other according to passive alignment.
Koyama Tadashi
Nakama Kenichi
Dennison Associates
Nippon Sheet Glass Co. Ltd.
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