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Opt Express. 2014 Sep 08;22(18):22190-5. doi: 10.1364/OE.22.022190.

Extended nonlinear parametric process in anomalously pumped linear cavity oscillator.

Optics express

L T Lim, K S Yeo, M H Abu Bakar, N Tamchek, M A Mahdi

PMID: 25321594 DOI: 10.1364/OE.22.022190

Abstract

We demonstrate a linear cavity fiber optical parametric oscillator with extended pump-signal separation of 14.3 THz (116 nm). The signal laser is provided by a pair of 1675nm fiber Bragg gratings and a tunable idler from 1456.12 nm to 1462.48 nm is generated by detuning the pump wavelength in the anomalous dispersion regime of a highly nonlinear fiber. At such large pump-signal separation, we are still able to record a parametric conversion efficiency of more than -35 dB and idler optical signal-to-noise-ratio of 50 dB on average. The stability of the lasing signal and idler is examined and result shows both signal and idler peak power fluctuation is less than 1 dB over a period of 30 minutes.

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