TY - JOUR
T1 - Observations of complex frequency comb structure in a harmonically-pumped femtosecond optical parametric oscillator
AU - McCracken, Richard A.
AU - Balskus, Karolis
AU - Zhang, Zhaowei
AU - Reid, Derryck T.
PY - 2015
Y1 - 2015
N2 - Various schemes allow femtosecond optical parametric oscillators to produce pulses at harmonics of their pump laser repetition frequency, each apparently offering the possibility of generating widely-spaced, tunable frequency combs. Using a 100-MHz Ti:sapphire pump laser, we have compared two alternative optical parametric oscillator architectures, both leading to 300-MHz pulses but one configured in a cavity three times shorter than the pump laser and the other in a cavity one-third longer. Heterodyne measurements between the pump and each of these two systems show that they possess different carrier-envelope offset characteristics, with implications on the coherence and stabilization of the resulting combs.
AB - Various schemes allow femtosecond optical parametric oscillators to produce pulses at harmonics of their pump laser repetition frequency, each apparently offering the possibility of generating widely-spaced, tunable frequency combs. Using a 100-MHz Ti:sapphire pump laser, we have compared two alternative optical parametric oscillator architectures, both leading to 300-MHz pulses but one configured in a cavity three times shorter than the pump laser and the other in a cavity one-third longer. Heterodyne measurements between the pump and each of these two systems show that they possess different carrier-envelope offset characteristics, with implications on the coherence and stabilization of the resulting combs.
U2 - 10.1088/1742-6596/594/1/012004
DO - 10.1088/1742-6596/594/1/012004
M3 - Article
AN - SCOPUS:84925340637
SN - 1742-6588
VL - 594
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012004
ER -