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dc.creatorWysocki, Gerard
Tittel, Frank K.
Curl, Robert F.
dc.date.accessioned 2015-05-04T19:05:53Z
dc.date.available 2015-05-04T19:05:53Z
dc.date.issued 2010-06-08
dc.identifier.urihttps://hdl.handle.net/1911/80024
dc.description.abstract A widely tunable, mode-hop-free semiconductor laser operating in the mid-IR comprises a QCL laser chip having an effective QCL cavity length, a diffraction grating defining a grating angle and an external cavity length with respect to said chip, and means for controlling the QCL cavity length, the external cavity length, and the grating angle. The laser of claim 1 wherein said chip may be tuned over a range of frequencies even in the absence of an anti-reflective coating. The diffraction grating is controllably pivotable and translatable relative to said chip and the effective QCL cavity length can be adjusted by varying the injection current to the chip. The laser can be used for high resolution spectroscopic applications and multi species trace-gas detection. Mode-hopping is avoided by controlling the effective QCL cavity length, the external cavity length, and the grating angle so as to replicate a virtual pivot point.
dc.format.extent 20 pp
dc.language.iso eng
dc.title Piezo activated mode tracking system for widely tunable mode-hop-free external cavity mid-IR semiconductor lasers
dc.type Utility patent
dc.digitization.specificationsThis patent information was downloaded from the US Patent and Trademark website (http://www.uspto.gov/) as image-PDFs. The PDFs were OCRed for access purposes.
dc.contributor.publisher United States Patent and Trademark Office
dc.type.genre patents
dc.type.dcmi Text
dc.date.filed 2005-08-15
dc.identifier.patentID US7733924B2
dc.contributor.assignee Rice University
dc.identifier.citation Wysocki, Gerard, Tittel, Frank K. and Curl, Robert F., "Piezo activated mode tracking system for widely tunable mode-hop-free external cavity mid-IR semiconductor lasers." Patent US7733924B2. issued 2010-06-08. Retrieved from https://hdl.handle.net/1911/80024.


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