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

Abstract

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.

Inventors:
; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1257215
Patent Number(s):
9,366,822
Application Number:
14/869,482
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Sep 29
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Lentine, Anthony L., Kekatpure, Rohan Deodatta, Zortman, William A., and Savignon, Daniel J. Thermo-optically tuned photonic resonators with concurrent electrical connection and thermal isolation. United States: N. p., 2016. Web.
Lentine, Anthony L., Kekatpure, Rohan Deodatta, Zortman, William A., & Savignon, Daniel J. Thermo-optically tuned photonic resonators with concurrent electrical connection and thermal isolation. United States.
Lentine, Anthony L., Kekatpure, Rohan Deodatta, Zortman, William A., and Savignon, Daniel J. 2016. "Thermo-optically tuned photonic resonators with concurrent electrical connection and thermal isolation". United States. doi:. https://www.osti.gov/servlets/purl/1257215.
@article{osti_1257215,
title = {Thermo-optically tuned photonic resonators with concurrent electrical connection and thermal isolation},
author = {Lentine, Anthony L. and Kekatpure, Rohan Deodatta and Zortman, William A. and Savignon, Daniel J.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 6
}

Patent:

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  • A method for providing a low-thermal-resistance, high-electrical-isolation heat intercept connection is presented. Electrical conductors often require the removal of heat produced from their normal operation. The heat can be removed by mechanical connection to a refrigeration source. Such connections require both effective heat removal (low thermal resistance) and effective electrical isolation (high electrical resistance and high dielectric strength). Such connections should be straightforward to fabricate and provide reliable performance that is independent of operating temperature. The connection method described here involves clamping, by thermal interference fit, an electrically insulating cylinder between an outer metallic ring and an inner metallic disk.
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