Optical waveguides – With optical coupler – Plural
Patent
1995-08-16
2000-06-06
Sanghavi, Hemang
Optical waveguides
With optical coupler
Plural
385 14, 385 37, 385 42, 385 50, 385131, 372 50, 359124, 359127, G02B 612, H01S 319
Patent
active
060729252
ABSTRACT:
An integrated optical node includes a main waveguide, a sub-waveguide, a fixed-wavelength type optical coupler and a tunable type optical coupler. On the sub-waveguide, an optical receiver may be formed to detect light guided from the main waveguide to the sub-waveguide by the optical coupler and/or a laser may be formed to emit light to be guided from the sub-waveguide to the main waveguide by the optical coupler. The elements of the optical node are arranged on a common semiconductor substrate so that the optical node can be reduced in size.
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"Monolithic Integration of ARROW-type Demultiplexer and Photodetector" by Y. Kokubun et al.; Fourteenth European Conference on Optical Communication (ECOC 88) vol. 1 Sep. 15, 1988 Brighton, U.K. pp. 231-234.
Canon Kabushiki Kaisha
Sanghavi Hemang
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