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Publication Citation: Comb-assisted swept laser spectroscopy with a mode-hop free tunable external cavity QCL

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Author(s): Kevin O. Knabe; Fabrizio R. Giorgetta; Nathan R. Newbury; Chris Armacost; Michael Radunsky; Sam Crivello; Timothy Day; Paul A. Williams;
Title: Comb-assisted swept laser spectroscopy with a mode-hop free tunable external cavity QCL
Published: May 01, 2012
Abstract: We demonstrate sub-MHz spectral resolution of N2O absorption spectra acquired with a swept external-cavity quantum cascade laser (QCL) over 0.87 THz. The QCL frequency is monitored by sum -frequency generation with an optical fiber frequency comb.
Proceedings: CLEO 2012, the Conference on Lasers and Electro-Optics
Pages: 2 pp.
Location: San Jose, CA
Dates: May 6-11, 2012
Keywords: comb-assisted spectroscopy; mid-infrared; optical frequency comb; N2O; quantum cascade laser frequency metrology
Research Areas: Optoelectronics