Low loss awg muliplexer

Details Low loss awg muliplexer Low loss awg muliplexer

G - Physics

02

B

G02B 6/28 (2006.01) G02B 6/293 (2006.01) G02B 6/34 (2006.01) G02B 27/10 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2489898

An optical coupler, a beam splitter, and an AWG, according to the present invention are each provided with a transition region for the attainment of a low loss and can effectively minimize the reflection of optical signals which occurs in the transition region. The optical coupler, beam splitter, and AWG, according to the present invention are each provided with a slab waveguide 55, plural waveguides 62 1, 62 2, ..., 62 10 for the output of optical signals and further provided with plural waveguide paths 63 for connecting adjacent ones of the waveguides 62 1, 62 2, ..., 62 10. The waveguide paths 63 adjacent with respect to each of the waveguides are positioned at different distances from the slab waveguide 55.

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