INTEGRATED THERMAL STABILIZATION OF A MICRORING RESONATR

摘要

Embodiments of the present disclosure provide devices and methods involving the thermal stabilization of microring resonators, such as microring modulators. Power is measured via an on-chip photodetector integrated with a drop port of the microring resonator, providing a local measurement of average power. This average power is employed as a feedback measure to actively control a heater that is integrated with the microring resonator, in order to stabilize the resonant wavelength of the microring resonator in the presence of thermal fluctuations. Employing such a system, a microring modulator can maintain error-free performance under thermal fluctuations that would normally render it inoperable.

主权项

1. A thermally stabilized integrated optical device comprising:
a microring resonator; a photodetector integrated with said microring resonator; a heater configured to locally heat said microring resonator; and a controller interfaced with said photodetector and said heater, wherein said controller is configured to thermally stabilize a resonant wavelength of said microring resonator by controlling said heater to maintain the average power measured by said photodetector.