Midinfrared frequency comb from self-stable degenerate GaAs optical parametric oscillator

We pump a degenerate frequency-divide-by-two optical parametric oscillator (OPO) based on orientation-patterned GaAs with a stable Tm frequency comb at 2 micrometer wavelength and measure the OPO comb offset frequency and linewidth. We show frequency division by two with sub-Hz relative linewidth of...

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Bibliographic Details
Published in:Optics express 2015-10, Vol.23 (20), p.26596-26603
Main Authors: Lee, Kevin F, Mohr, C, Jiang, J, Schunemann, Peter G, Vodopyanov, K L, Fermann, M E
Format: Article
Language:English
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Summary:We pump a degenerate frequency-divide-by-two optical parametric oscillator (OPO) based on orientation-patterned GaAs with a stable Tm frequency comb at 2 micrometer wavelength and measure the OPO comb offset frequency and linewidth. We show frequency division by two with sub-Hz relative linewidth of the comb teeth. The OPO thermally self-stabilizes and oscillates for nearly an hour without any active control.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.026596