Resonantly enhanced grating coupler

Details Resonantly enhanced grating coupler Resonantly enhanced grating coupler

2008-07-08

2008-07-08

Wong, Tina M (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S014000, C385S050000

Reexamination Certificate

active

07397987

ABSTRACT:
An apparatus and method for increasing efficiency of grating couplers are disclosed. The apparatus through the use of a defect or a reflective element allows coupling of light around a normal or nearly normal angle with a high efficiency. The method disclosed teaches how to increase the efficiency of a grating coupler through the use of a defect or a mirror. The apparatus and method can be of particular utility in the context of optical clocking implemented with a III-V chip flip-chip bonded on a CMOS chip.

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