Generation of 20 GHz, sub-40 fs pulses at 960 nm via repetition-rate multiplication.
Optical filtering of a stabilized 1 GHz optical frequency comb produces a 20 GHz comb with approximately 40 nm bandwidth (FWHM) at 960 nm. Use of a low-finesse Fabry-Pérot cavity in a double-pass configuration provides a broad cavity coupling bandwidth (Deltalambda/lambda approximately 10%) and large suppression (50 dB) of unwanted modes. Pulse durations shorter than 40 fs with less than 2% residual amplitude modulation are achieved.
Kirchner
M S
MS
Department of Physics, University of Colorado, Boulder, CO 80309, USA. mkirchne@boulder.nist.gov
Braje
D A
DA
Fortier
T M
TM
Weiner
A M
AM
Hollberg
L
L
Diddams
S A
SA