A Compact and High Efficiency Intracavity Opo Based on Periodically-poled Lithium Niobate

doi:10.21203/rs.3.rs-133980/v1

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Research Article

A Compact and High Efficiency Intracavity Opo Based on Periodically-poled Lithium Niobate

https://doi.org/10.21203/rs.3.rs-133980/v1

This work is licensed under a CC BY 4.0 License

Journal Publication

published 03 Mar, 2021

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We demonstrate a compact, high-efficiency and widely tunable intracavity singly resonant optical parametric oscillator (IC-OPO) based on multichannel periodically-poled lithium niobate (PPLN). The IC-OPO is composed of 808 nm pump laser diode (LD), Nd:YVO₄ laser and linear OPO. The continuous-wave (CW) mid-infrared (MIR) output laser is tunable from 2.25 μm to 4.79 μm. The maximum output power exceeds 1.08 W at 3.189 μm at 9.1 W LD pump power and the conversion efficiency is 11.88 %. We also build up a prototype with volume of Wmm³and its total weight is less than 2 Kg. The measured power stability is 1.3 % Root Meat Square (RMS) for a 3 h duration under simulated high temperature conditions of 40 ℃. RMS is 2.6 % for a 4 h duration when simulated temperature is - 40 ℃.

Electronic Materials and Devices

continuous-wave

mid-infrared

intracavity optical parametric oscillator

periodically poled lithium niobate crystal

tunable