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:
Jun. 16, 2015
Filed:
Aug. 02, 2013
John C. Connolly, Clarksburg, NJ (US);
Donald E Ackley, Cardiff, CA (US);
Scott L. Rudder, Hopewell, NJ (US);
Harald R. Guenther, Schnecksville, PA (US);
John C. Connolly, Clarksburg, NJ (US);
Donald E Ackley, Cardiff, CA (US);
Scott L. Rudder, Hopewell, NJ (US);
Harald R. Guenther, Schnecksville, PA (US);
Innovative Photonic Solutions, Monmouth Junction, NJ (US);
Abstract
A hybrid external cavity laser (HECL) system comprises a diode laser, collection and collimation optics, and a volume Bragg grating, emits radiation at a single wavelength with a short-term wavelength stability in the order of at least one part in a billion The wavelength stability is achieved by use of a thermal management system, comprising inner and outer housings, each containing a temperature sensor, and electronic circuitry that monitors the temperatures and controls both the laser diode current and a thermoelectric cooler based on temperatures determined from said temperature sensors. The laser system is packaged in a compact enclosure that minimizes waste heat, facilitating use in applications that have heretofore employed stable, single-frequency lasers, including He—Ne lasers.