The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2010
Filed:
Sep. 20, 2007
Anatoliy A. Savchenkov, Glendale, CA (US);
Nan Yu, Arcadia, CA (US);
Lute Maleki, Pasadena, CA (US);
Vladimir S. Iltchenko, Arcadia, CA (US);
Andrey B. Matsko, Pasadena, CA (US);
Dmitry V. Strekalov, Arcadia, CA (US);
Anatoliy A. Savchenkov, Glendale, CA (US);
Nan Yu, Arcadia, CA (US);
Lute Maleki, Pasadena, CA (US);
Vladimir S. Iltchenko, Arcadia, CA (US);
Andrey B. Matsko, Pasadena, CA (US);
Dmitry V. Strekalov, Arcadia, CA (US);
Abstract
A differential temperature sensor system and method of determining a temperature shift of an optical resonator and its surroundings are provided. The differential temperature sensor system includes a light generating device capable of generating a beam having a carrier frequency, a modulator capable of modulating the beam with a sideband frequency, and an optical resonator capable of supporting an ordinary mode and an extraordinary mode. The system includes an ordinary mode-lock setup capable of locking the carrier frequency of the beam to the ordinary mode of the optical resonator and an extraordinary mode-lock setup capable of locking the sideband frequency of the beam to the extraordinary mode of the optical resonator by providing a specific radio frequency to the modulator substantially corresponding to a frequency shift between the ordinary mode and the extraordinary mode of the optical resonator resulting from a temperature change of the optical resonator. A processor precisely calculates the differential temperature based upon the frequency shift between the ordinary mode and extraordinary mode of the optical resonator.