Abstract
We describe a high-repetition-rate femtosecond optical parametric oscillator (OPO) that was broadly tunable in the mid infrared. The all-solid-state-pumped OPO was based on quasi-phase matching in periodically poled lithium niobate. The idler was tunable from approximately to beyond , with maximum average power levels greater than 200 mW and more than 20 mW of average power at . We used interferometric autocorrelation to characterize the mid-infrared idler pulses, which typically had durations of 125 fs. This OPO had a pumping threshold as low as 65 mW of average pump power, a maximum conversion efficiency of into the near-infrared signal, a slope efficiency for the signal of approximately 60%, and a maximum pump depletion of more than 85%.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
D. T. Reid, Z. Penman, M. Ebrahimzadeh, W. Sibbett, H. Karlsson, and F. Laurell
Opt. Lett. 22(18) 1397-1399 (1997)
S. D. Butterworth, P. G. R. Smith, and D. C. Hanna
Opt. Lett. 22(9) 618-620 (1997)
G. T. Kennedy, D. T. Reid, A. Miller, M. Ebrahimzadeh, H. Karlsson, G. Arvidsson, and F. Laurell
Opt. Lett. 23(7) 503-505 (1998)