Zhang, Z W*; Gu, C L*; Sun, J H*; Wang, C Y*; Gardiner, T; Reid, D T* (2012) Asynchronous mid-infrared ultrafast optical parametric oscillator for dual-comb spectroscopy. Opt. Lett., 37 (2). pp. 187-189.

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Abstract

Two asynchronous, broadband 3.3-µm pulse trains with a stabilized repetition-rate difference of up to 5 kHz were generated using an ultrafast optical parametric oscillator. The two oscillation channels, each producing ~100 mW average power, ran essentially independently, and weak non-phasematched sum-frequency-mixing between them provided a timing signal that indicated when the asynchronous pulses coincided. The system has immediate applications in incoherent asynchronous optical sampling and, with additional carrier-envelope-offset stabilisation, could be applied to coherent dual-frequency-comb spectroscopy.

Item Type:	Article
Keywords:	Asynchronous OPO, Infrared spectroscopy
Subjects:	Environmental Measurement Environmental Measurement > Atmospheric Science, Emission and Security
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/5404

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