Chinese Optics Letters, 2016, 14 (11): 111401, Published Online: Aug. 2, 2018
1.88 μm, Ba(NO3)2-based Raman laser pumped by a potassium-titanyl-phosphate-based optical parametric oscillator laser
140.3550 Lasers, Raman 140.3538 Lasers, pulsed 190.5650 Raman effect 190.4970 Parametric oscillators and amplifiers
Abstract
A 1.88 μm Ba ( NO 3 ) 2 -based stimulated Raman scattering (SRS) laser pumped by a potassium-titanyl-phosphate-based optical parametric oscillator (OPO) laser is presented. Under the pumping energy of a 130 mJ 1064 nm Q -switched Nd:YAG laser, a 40 mJ 1.57 μm laser is achieved; the maximum output energy of the 1.88 μm Raman laser reaches 7.5 mJ with a pulse duration of 5.3 ns at repetition rates of 10 Hz, and the corresponding total optical conversion efficiency is about 5.8%. The combination of the SRS and OPO techniques significantly extends the wavelength from 1.064 to 1.57 μm (OPO) and then demonstrates Stokes-shifting to 1.88 μm (SRS).
Junchi Chen, Xiao Zou, Yujie Peng, Hongpeng Su, Yuxin Leng. 1.88 μm, Ba(NO3)2-based Raman laser pumped by a potassium-titanyl-phosphate-based optical parametric oscillator laser[J]. Chinese Optics Letters, 2016, 14(11): 111401.