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Title: Thermo-optically tuned photonic resonators with concurrent electrical connection and thermal isolation

Patent ·
OSTI ID:1257215
; ; ;

A photonic resonator system is designed to use thermal tuning to adjust the resonant wavelength of each resonator in the system, with a separate tuning circuit associated with each resonator so that individual adjustments may be made. The common electrical ground connection between the tuning circuits is particularly formed to provide thermal isolation between adjacent resonators by including a capacitor along each return path to ground, where the presence of the capacitor's dielectric material provides the thermal isolation. The use of capacitively coupling necessarily requires the use of an AC current as an input to the heater element (conductor/resistor) of each resonator, where the RMS value of the AC signal is indicative of the amount of heat that is generated along the element and the degree of wavelength tuning that is obtained.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
9,366,822
Application Number:
14/869,482
OSTI ID:
1257215
Resource Relation:
Patent File Date: 2015 Sep 29
Country of Publication:
United States
Language:
English

References (15)

Thermal stabilization of a microring modulator using feedback control journal January 2012
Silicon Microring Modulator with Integrated Heater and Temperature Sensor for Thermal Control conference May 2010
Resolving the thermal challenges for silicon microring resonator devices journal January 2014
Localized thermal tuning of ring resonators patent October 2003
Tunable optical resonator patent May 2012
Silicon photonics thermal phase shifter with reduced temperature range patent December 2013
System for active control of integrated resonant optical device wavelength patent December 2013
Semiconductor high-speed integrated electro-optic devices and methods patent August 2014
Electro-refractive photonic device patent June 2015
Methods and devices for maintaining a resonant wavelength of a photonic microresonator patent July 2015
Silicon photonic heater-modulator patent July 2015
Methods and devices for optimizing the operation of a semiconductor optical modulator patent July 2015
Heterogeneous resonant photonic integrated circuit patent September 2015
Reconfigurable optical networks patent October 2015
Thermally tuneable optical modulator adapted for differential signaling patent January 2016

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