Semiconductor optical waveguide device

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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C385S050000, C385S129000

Reexamination Certificate

active

07035509

ABSTRACT:
A device comprises a tapered semiconductor optical waveguide which tapers, at an angle of taper with respect to a longitudinal axis of the waveguide, from a relatively wide region to a relatively narrow region, wherein the angle of taper varies along the length of the tapered waveguide such that at all points along the taper it is no greater than, and within a substantially constant angular separation of, the adiabatic limit of the fundamental mode of the waveguide at that point along the taper.

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Moerman, I., et al. “III-V semiconductor waveguiding devices using adiabatic tapers.”Microelectronics Journal1994 25:675-690.

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