Open AccessSpectral linewidth preservation in parametric frequency combs seeded by dual pumps
Author(s) -
Zhi Tong,
Andreas O. J. Wiberg,
Evgeny Myslivets,
Bill P.-P. Kuo,
Nikola Alić,
S. Radic
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.017610
Subject(s) - laser linewidth , optics , phase noise , frequency comb , parametric statistics , wideband , bandwidth (computing) , materials science , physics , laser , computer science , telecommunications , statistics , mathematics
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.