TY - GEN
T1 - KTP optical parametric oscillator pumped by the laser with a SBS phase conjugate mirror
AU - Yao, Baoquan
AU - Ju, Youlun
AU - Yu, Xin
AU - Liu, Qiang
AU - Wang, Yuezhu
PY - 1996
Y1 - 1996
N2 - Potassium Titanium Oxide Phosphate (KTP) is a new nonlinear frequency-conversion crystal. It has high nonlinear coefficient, high damage threshold, easily-polished surface, and a broad transparency range. In this paper, the calculation method of angle phase-matching for parametric generation in KTP was presented. The angle phase-matching curve and their characteristics in KTP pumped by 532 nm, 694.3 nm radiation were calculated and analyzed. The propagating principal plane (x-y plane) and 56° cut angle to z-axis were selected in our experiment, and the measured results agreed well with the calculated ones. The quality of laser beam is an important factor of affecting OPO threshold fluence and conversion efficiency, so the phase-conjugate technology of Stimulated Brillouin Scattering (SBS) for improving the pump laser beam quality was discussed and applied to the pump laser system. The tuning curves and output energy of KTP OPO pumped by Ruby laser (0.6943 μm), the second harmonic of Nd:YAG (0.532 μm) were measured and compared with the theoretical cases. An important result was obtained that the amplified back SBS light which was employed to pump KTP OPO could greatly reduce the OPO threshold.
AB - Potassium Titanium Oxide Phosphate (KTP) is a new nonlinear frequency-conversion crystal. It has high nonlinear coefficient, high damage threshold, easily-polished surface, and a broad transparency range. In this paper, the calculation method of angle phase-matching for parametric generation in KTP was presented. The angle phase-matching curve and their characteristics in KTP pumped by 532 nm, 694.3 nm radiation were calculated and analyzed. The propagating principal plane (x-y plane) and 56° cut angle to z-axis were selected in our experiment, and the measured results agreed well with the calculated ones. The quality of laser beam is an important factor of affecting OPO threshold fluence and conversion efficiency, so the phase-conjugate technology of Stimulated Brillouin Scattering (SBS) for improving the pump laser beam quality was discussed and applied to the pump laser system. The tuning curves and output energy of KTP OPO pumped by Ruby laser (0.6943 μm), the second harmonic of Nd:YAG (0.532 μm) were measured and compared with the theoretical cases. An important result was obtained that the amplified back SBS light which was employed to pump KTP OPO could greatly reduce the OPO threshold.
UR - https://www.scopus.com/pages/publications/0030375420
M3 - 会议稿件
AN - SCOPUS:0030375420
SN - 0819422908
SN - 9780819422903
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 263
EP - 267
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Mei, Sui-Sheng
A2 - Truesdell, Keith A.
T2 - High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers
Y2 - 4 November 1996 through 5 November 1996
ER -