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PUBLICATIONS

Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Dual-Comb Spectroscopy

Published

Author(s)

Flavio Caldas da Cruz, Daniel I. Maser, Todd Johnson, Gabriel G. Ycas, Andrew M. Klose, Fabrizio R. Giorgetta, Ian R. Coddington, Nathan R. Newbury, Scott A. Diddams

Abstract

Mid-infrared femtosecond optical frequency combs at 2.8 - 3.5 υm were produced by difference frequency generation of the spectral components of a near-infrared comb in a 3-mm long MgO:PPLN crystal. We observe strong pump depletion and 9.3 dB parametric gain at the 1.5 υm signal, which yields powers above 500 mW (3 υW/mode) in the 3 υm idler. Use of polarization-maintaining (PM) fiber amplifiers provided higher stability and reduced amplitude noise as compared to non-PM fiber systems. Dual-comb absorption spectroscopy demonstrated for acetylene at 3 υm shows good prospect for broadband, high-resolution MIR molecular spectroscopy.
Conference Dates
May 10, 2015-January 15, 2016
Conference Location
San Josue, CA
Conference Title
Proceedings 2014 Conference on Lasers and Electro-Optics
Pub Type
Conferences

Keywords

Fiber optics amplifiers and oscillators, Nonlinear wave mixing, Spectroscopy, Fourier transforms, Spectroscopy, heterodyne, Ultrafast lasers, Ultrafast nonlinear optics
Physics

Citation

Caldas, F. , Maser, D. , Johnson, T. , Ycas, G. , Klose, A. , Giorgetta, F. , Coddington, I. , Newbury, N. and Diddams, S. (2015), Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Dual-Comb Spectroscopy, Proceedings 2014 Conference on Lasers and Electro-Optics, San Josue, CA (Accessed October 13, 2025)

Issues

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Created May 10, 2015, Updated February 19, 2017
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