Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Molecular Spectroscopy
| Autor: | Cruz, Flavio C., Maser, Daniel L., Johnson, Todd, Ycas, Gabriel, Klose, Andrew, Giorgetta, Fabrizio R., Coddington, Ian, Diddams, Scott A. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OE.23.026814 |
| Popis: | Mid-infrared femtosecond optical frequency combs 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 in the 1.5 \mu m signal, which yields powers above 500 mW (3 \mu W/mode) in the idler with spectra covering 2.8 \mu m to 3.5 \mu m. Potential for broadband, high-resolution molecular spectroscopy is demonstrated by absorption spectra and interferograms obtained by heterodyning two combs. Comment: 11 pages, 8 figures |
| Databáze: | arXiv |
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