Optical multiplexing/demultiplexing module
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United States of America Patent
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Apr 8, 2003
Grant Date -
Apr 18, 2002
app pub date -
Jul 25, 2001
filing date -
Jul 26, 2000
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Abstract
An optical multiplexing/demultiplexing module for inputting a first linearly polarized beam after exiting a first optical waveguide, and the first beam is collimated by a first lens. A second linearly polarized beam exits a second optical waveguide and is collimated by a second lens. Both beams enter an entrance surface of a uniaxial birefringent crystal. The second beam enters the crystal along an optical path which is changed by a prism. This reduces the distance between the respective points of entrance of the beams. The beams which have entered the crystal are multiplexed at an exit surface of the crystal. A resultant multiplexed beam is converged by a third lens to enter and exit a third optical waveguide.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- THE FURUKAWA ELECTRIC CO., LTD.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Matsuura, Hiroshi | Tokyo, JP | 82 | 1348 |
Yoon, Daeyoul | Tokyo, JP | 9 | 13 |
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