Optical waveguide and their application of the optical...

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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C385S123000, C385S129000, C359S333000

Reexamination Certificate

active

06868210

ABSTRACT:
An optical transmitter/receiver module of wavelength division multiplexing type which undergoes a reduced excess loss resulting from the displacement of a dicing position is fabricated with a high yield rate. An optical waveguide for guiding reflected light from a wavelength selection filter has a core substantially larger in size than the core of each of the other optical waveguides.

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“European Conference on Optical Communication”, 1998, p. 629.
“European Conference on Optical Communication”, 1999, p. 312.

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