DocumentCode :
83983
Title :
Midinfrared Optical Parametric Amplifier With 6.4–11 
Range Based on BaGa4Se7
Author :
Feng Yang ; Ji-Yong Yao ; Hong-Yan Xu ; Feng-Feng Zhang ; Nai-Xia Zhai ; Zuo-Hong Lin ; Nan Zong ; Qin-Jun Peng ; Jing-Yuan Zhang ; Da-Fu Cui ; Yi-Cheng Wu ; Chuang-Tian Chen ; Zu-Yan Xu
Author_Institution :
Res. Center for Laser Phys. & Technol., Tech. Inst. of Phys. & Chem., Beijing, China
Volume :
27
Issue :
10
fYear :
2015
fDate :
May15, 15 2015
Firstpage :
1100
Lastpage :
1103
Abstract :
A widely tunable picosecond midinfrared (MIR) optical parametric amplifier (OPA) with wavelength ranging from 6.4 to 11 μm based on the BaGa4Se7 crystal was demonstrated. The MIR OPA was pumped by a 30 ps 1064-nm Nd:YAG laser and injected by a KTiOPO4 (KTP)-based narrow-bandwidth widely tunable near-infrared seed. The wide spectral generation using type-I (o → e + e) critically phase-matched parametric amplification in BaGa4Se7 was investigated. The output energies were measured to be ~38 μJ at 11 μm and up to ~100 μJ at 6.4 μm under pumping energy of ~4.1 mJ. Further, the type-I phase-matching angles of BaGa4Se7 crystal for idler light generation in the range of 6.4-11 μm were experimentally measured and the discrepancy between the experiment and theoretical calculation was discussed.
Keywords :
barium compounds; optical materials; optical parametric amplifiers; optical phase matching; optical pumping; optical tuning; potassium compounds; solid lasers; BaGa4Se7; BaGa4Se7 crystal; KTP; KTP based narrow-bandwidth widely tunable near-infrared seed; MIR OPA; Nd:YAG laser; critically phase-matched parametric amplification; energy 100 muJ; energy 38 muJ; energy 4.1 mJ; idler light generation; output energies; pumping energy; time 30 ps; type-I phase-matching angles; wavelength 1064 nm; wavelength 6.4 mum to 11 mum; wide spectral generation; widely tunable picosecond midinfrared optical parametric amplifier; Crystals; Frequency conversion; Laser beams; Nonlinear optics; Optical pulses; Optical pumping; BaGa4Se7 crystal; Mid-infrared; mid-infrared; optical parametric amplifier;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2015.2407895
Filename :
7052303
Link To Document :
