Piezo activated mode tracking system for widely tunable mode-hop-free external cavity mid-IR semiconductor lasers

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dc.contributor.assigneeRice Universityen_US
dc.contributor.publisherUnited States Patent and Trademark Officeen_US
dc.creatorWysocki, Gerarden_US
dc.creatorTittel, Frank K.en_US
dc.creatorCurl, Robert F.en_US
dc.date.accessioned2015-05-04T19:05:53Z
dc.date.available2015-05-04T19:05:53Z
dc.date.filed2005-08-15en_US
dc.date.issued2010-06-08en_US
dc.description.abstractA 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.en_US
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.en_US
dc.format.extent20 ppen_US
dc.identifier.citationWysocki, 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.
dc.identifier.patentIDUS7733924B2en_US
dc.identifier.urihttps://hdl.handle.net/1911/80024
dc.language.isoengen_US
dc.titlePiezo activated mode tracking system for widely tunable mode-hop-free external cavity mid-IR semiconductor lasersen_US
dc.typeUtility patenten_US
dc.type.dcmiTexten_US
dc.type.genrepatentsen_US
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