Device and method for post-fabrication trimming of an optical ring resonator using a dopant-based heater
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United States of America Patent
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Apr 17, 2018
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Mar 10, 2016
filing date -
Mar 10, 2016
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Abstract
A device and method for post-fabrication trimming of an optical ring resonator using a dopant-based heater is provided. An optical ring resonator at the device can be heated using heaters in an optical slab from which the optical ring resonator extends, the heater including a non-uniform doping profile. A controller determines an initial resonance frequency and a target resonance frequency of the optical ring resonator. The controller applies predetermined electrical parameters to the heater using electrical connections to shift a resonance frequency of the optical ring resonator from the initial resonance frequency to the target resonance frequency by causing the dopant in the heater to migrate.
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