Suppression of pump-induced frequency noise in fiber-laser frequency combs leading to sub-radian fceo phase excursions

Published

August 1, 2006

Author(s)

John J. McFerran, William C. Swann, Brian R. Washburn, Nathan R. Newbury

Abstract

We discuss the origins and the suppression of the large frequency jitter on the carrier-envelope offset frequency(f_ceo) of fiber-laser frequency combs. While this frequency noise appears most prominently on f_ceo, its effects are felt across the frequency comb and it is a potential limiting factor in applications of fiber-laser frequency combs. Here we show that its origin lies in the white amplitude noise on the pump laser out-put. We dramatically reduce this noise by operating the pump laser in a lower-noise state, i.e. at higher pump current, and by more aggressively feeding back to the pump current with an optimal feedback network. We demonstrate instrument-limited f_ceo linewidths and an integrated f_ceo phase jitter of 1 rad.

Citation

Applied Physics B-Photophysics and Laser Chemistry

Pub Type

Journals

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Keywords

Fiber laser frequency comb, optical frequency metrology

Citation

McFerran, J. , Swann, W. , Washburn, B. and Newbury, N. (2006), Suppression of pump-induced frequency noise in fiber-laser frequency combs leading to sub-radian f_ceo phase excursions, Applied Physics B-Photophysics and Laser Chemistry, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32327 (Accessed January 15, 2025)