Room temperature watt-level 3.87 µm MgO:PPLN optical parametric oscillator under pumping with a Tm:YAP laser | Zendy

Lei Guo | Zendy; Yaling Yang | Zendy; Shengzhi Zhao | Zendy; Tao Li | Zendy; Wenchao Qiao | Zendy; Baomin Ma | Zendy; Hongkun Nie | Zendy; Shuai Ye | Zendy; Ruihua Wang | Zendy; Baitao Zhang | Zendy; Kejian Yang | Zendy; Jingliang He | Zendy

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Room temperature watt-level 3.87 µm MgO:PPLN optical parametric oscillator under pumping with a Tm:YAP laser

Author(s) -

Lei Guo,

Yaling Yang,

Shengzhi Zhao,

Tao Li,

Wenchao Qiao,

Baomin Ma,

Hongkun Nie,

Shuai Ye,

Ruihua Wang,

Baitao Zhang,

Kejian Yang,

Jingliang He

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.409093

Subject(s) - opos , optical parametric oscillator , materials science , optics , laser , slope efficiency , energy conversion efficiency , wavelength , pulse duration , optoelectronics , fiber laser , physics

A room-temperature highly efficient Tm:YAP laser pumped MgO:PPLN optical parametric oscillator operating at 3.87 µm near degeneracy is demonstrated. The pump source is an acousto-optical (AO) Q-switched Tm:YAP laser, which delivers a maximum output power of 6.17 W with a pulse duration of 45 ns and a repetition rate of 6 kHz. The temperature dependent wavelength tuning characteristics of the PPLN-OPO is investigated, and a maximum OPO output power of 1.2 W at around 3.87 µm is achieved at 35°C, corresponding to an optical-optical conversion efficiency of 19.4%. To the best of our knowledge, this is the maximum output power ever reported from 2 µm waveband laser pumped 3-5 µm MgO:PPLN OPOs.

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