Laser and photodetector coupled by planar waveguides

Details Laser and photodetector coupled by planar waveguides Laser and photodetector coupled by planar waveguides

2011-05-17

2011-05-17

Peng, Charlie (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling structure

C385S039000, C385S042000, C385S043000, C385S045000

Reexamination Certificate

active

07945132

ABSTRACT:
An optical apparatus comprises: a waveguide substrate; three planar optical waveguides formed on the substrate, each comprising a transmission core and cladding; a laser positioned to launch its optical output to propagate along the first waveguide; a photodetector positioned to receive an optical signal propagating along the second waveguide; and a lateral splitter core formed on the substrate for (i) transferring a first fraction of laser optical output propagating along the first waveguide to the second waveguide, and (ii) transferring a second fraction of the laser optical output propagating along the first waveguide to the third waveguide.

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