title: Compact self-cascaded KTA-OPO for 2.6 μm laser generation.
abstract: We reported a compact self-cascaded KTA-OPO source for 2.6 μm coherent light generation. The OPO is driven in a diode end-pumped and Q-switched Nd:YVO4laser cavity. Two OPO processes occurred in the same KTA crystal with non-critical phase matching. At an incident diode pump power of 8.7 W and a pulse repetition frequency of 60 kHz, the OPO can generate a maximum average output power of 445 mW at 2.59 μm. The slope efficiency was about 12.7%, and the power fluctuation was less than 8%. Therefore, the self-cascade OPO based on KTA offers a promise scheme for the rugged and compact mid-infrared 2.6 μm laser generation.
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Duan
authors.forename: Haiyong
authors.initials: H
authors.lastname: Zhu
authors.forename: Changwen
authors.initials: C
authors.lastname: Xu
authors.forename: Xiukai
authors.initials: X
authors.lastname: Ruan
authors.forename: Guihua
authors.initials: G
authors.lastname: Cui
authors.forename: Yaoju
authors.initials: Y
authors.lastname: Zhang
authors.forename: Dingyuan
authors.initials: D
authors.lastname: Tang
authors.forename: Dianyuan
authors.initials: D
authors.lastname: Fan