Open AccessFrequency stability of a femtosecond optical parametric oscillator frequency comb
Author(s) -
Teresa I. Ferreiro,
Jinghua Sun,
Derryck T. Reid
Publication year - 2011
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.19.024159
Subject(s) - frequency comb , femtosecond , optics , phase noise , optical parametric oscillator , laser linewidth , laser , bibo stability , materials science , comb generator , jitter , spectral density , physics , telecommunications , computer science , quantum mechanics , nonlinear system
Carrier-envelope-offset (CEO) and pulse-repetition frequencies of a Ti:sapphire-pumped femtosecond optical parametric oscillator were locked to uncertainties of 0.09 Hz and 0.16 mHz respectively, with the CEO beat signal linewidth being stabilized to 15 Hz (instrument limited). In-loop phase-noise power spectral density measurements showed a contribution of our servo electronics to the comb-line frequency uncertainty of up to 110 Hz. Complementary time-series data implied an in-loop comb instability of 2 x 10(-11) (1-s gate time), matching the Rb-stabilized reference used and verifying that dual servo-control of the CEO and repetition frequencies was effective in stabilizing the comb to at least this precision.