Coupled optical waveguide resonators with heaters for...

Optical waveguides – With optical coupler – Particular coupling function

Reexamination Certificate

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C385S008000, C385S016000

Reexamination Certificate

active

11208338

ABSTRACT:
An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a heater localized to each optical resonator. An optical input signal is coupled to one of the resonators making up the compound resonator to form an optical output signal. The center wavelength and shape of the output signal is optimized with a feedback loop using the temperature sensor to control the power dissipated in at least one of the localized heaters. The power dissipated in the remaining resonator heaters is set according to a predetermined function having as an input variable the power dissipated in the resonant heater under control of the said feedback loop.

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patent: 2006/0051010 (2006-03-01), Chu et al.
patent: WO 02/103448 (2002-12-01), None
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“Thermally Tunable Integrated Optical Ring Resonator with Poly-Si Thermistor”, Journal of Lightwave Technology, vol. 14, No. 10, Oct. 1996, Palvi, Heimala, Pekka Katila, Jaakko Aarnio, and Arja Heinamaki, pp. 2260-2267.

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