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Opt Lett. 2011 Jun 15;36(12):2275-7. doi: 10.1364/OL.36.002275.

Mid-IR frequency comb source spanning 4.4-5.4 μm based on subharmonic GaAs optical parametric oscillator.

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1
E. L. Ginzton Laboratory, 348 via Palou, Stanford University, Stanford, California 94305, USA. vodopyan@stanford.edu

Abstract

Broadband mid-IR output suitable for producing 1000-nm-wide frequency combs centered at 4.9 μm was achieved in a degenerate subharmonic optical parametric oscillator (OPO) based on 500-μm-long Brewster-angled orientation-patterned GaAs crystal. The OPO was synchronously pumped at 182 MHz repetition rate by 100 fs pulses from a Cr²⁺:ZnSe laser with the central wavelength of 2.45 μm and the average power of 100 mW.

PMID:
21685991
[Indexed for MEDLINE]
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