Semiconductor micro-resonator for monitoring an optical device

Details Semiconductor micro-resonator for monitoring an optical device Semiconductor micro-resonator for monitoring an optical device

2006-09-26

2006-09-26

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S092000

Reexamination Certificate

active

07113525

ABSTRACT:
An optical device includes an optical waveguide through which light propagates and a micro-resonator structure including an optical sensor. The micro-resonator is configured to resonate at a wavelength of light that may be transmitted through the optical waveguide. When light at that wavelength is transmitted through the optical waveguide, it resonates in the resonator and is detected by the optical sensor to produce an electrical signal. The optical resonator may be a micro-cylinder, disc or ring resonator and may be coupled to the waveguide via evanescent coupling or leaky-mode coupling. Multiple resonators may be implemented proximate to the waveguide to allow multiple wavelengths to be detected. When the waveguide is coupled to a tunable laser, signals provided by the optical sensor may be used to tune the wavelength of the laser.

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