title: High average power 1.5 microm eye-safe Raman shifting in BaWO4 crystals.
abstract: A nanosecond 1.3 microm Nd:YAG laser-pumped external cavity eye-safe Raman laser based on BaWO(4) crystal is efficiently demonstrated. The average power of 1.5 microm was 0.60 W operating at a pulse repetition rate of 1.7 kHz and an incident pump power of 4.14 W. Conversion efficiency of 14.5% and a high slope efficiency of 54.5% have been achieved. Pulse shortening was obviously observed. The pulse duration of the first Stokes was about 40 ns, much shorter than the fundamental pulse with a duration of approximately 220 ns.
authors.affiliation: Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Science, Beijing 100080, China. zongnan1018@163.com
authors.forename: Nan
authors.initials: N
authors.lastname: Zong
authors.forename: Qian-jin
authors.initials: QJ
authors.lastname: Cui
authors.forename: Qing-lei
authors.initials: QL
authors.lastname: Ma
authors.forename: Xiao-fu
authors.initials: XF
authors.lastname: Zhang
authors.forename: Yuan-fu
authors.initials: YF
authors.lastname: Lu
authors.forename: Cheng-ming
authors.initials: CM
authors.lastname: Li
authors.forename: Da-fu
authors.initials: DF
authors.lastname: Cui
authors.forename: Zu-yan
authors.initials: ZY
authors.lastname: Xu
authors.forename: Huai-jin
authors.initials: HJ
authors.lastname: Zhang
authors.forename: Ji-yang
authors.initials: JY
authors.lastname: Wang
mesh_terms: D017609:Barium Compounds / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005131:Eye Injuries / Q000517:prevention & control; D007834:Lasers; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*
chemical_list: D017609:Barium Compounds