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Opt Express. 2012 Jul 30;20(16):17610-9. doi: 10.1364/OE.20.017610.

Spectral linewidth preservation in parametric frequency combs seeded by dual pumps.

Author information

1
Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA. ztong@eng.ucsd.edu

Abstract

We demonstrate new technique for generation of programmable-pitch, wideband frequency combs with low phase noise. The comb generation was achieved using cavity-less, multistage mixer driven by two tunable continuous-wave pump seeds. The approach relies on phase-correlated continuous-wave pumps in order to cancel spectral linewidth broadening inherent to parametric comb generation. Parametric combs with over 200-nm bandwidth were obtained and characterized with respect to phase noise scaling to demonstrate linewidth preservation over 100 generated tones.

PMID:
23038314

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