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High-peak power multi-wavelength picosecond pulses generated from a BaWO4 Raman-seeded optical parametric amplifier |
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| Authors: | Shifeng Du Dongxiang Zhang Baohua Feng Jing-Yuan Zhang Jing-Cun Zang |
| Institution: | a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China b Department of Physics, Georgia Southern University, Statesboro, GA 30460, USA c College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China |
| Abstract: | We report the generation of high-peak power multi-wavelength picosecond laser pulses using optical parametric amplification (OPA) in BBO seeded with pulses generated in a 5-mm length BaWO4 crystal by stimulated Raman scattering of 18-ps laser pulses at 532 nm. The maximum output energy of the amplified first-Stokes component at 559.7 nm was about 1.76 mJ. The corresponding maximum peak power, pulse duration and spectral line width were measured to be 117.3 MW, 15 ps and 18.0 cm−1, respectively. The multi-wavelength picosecond laser pulses were in the visible and near infrared ranges. Using this Raman-seeded OPA technique, the beam quality of the stimulated Raman scattering pulses can be improved. |
| Keywords: | 33 20 Fb 42 65 Yj 42 65 Dr 42 65 -k |
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