Add to BibSonomy
Abstract
We demonstrate a pulsed mid-infrared (MIR) optical parametric oscillator (OPO) with both inter-pulse and intra-pulse dual-wavelength operation capability. A fiber master oscillator power amplifier incorporating an acousto-optic tunable filter (AOTF) was employed as the pump for the OPO. By finely adjusting the drive wave packets for the AOTF, dual-wavelength pump can be realized within each pulse or between two adjacent pulses. These special temporal-spectral behaviors of the pump can be transferred to MIR via an OPO. In the proof-of-principle experiments, two pump wavelengths at ∼1065 and ∼1076 nm were generated and amplified to ∼31.2 W with equivalent spectral intensities for both pulsation modes. At the highest pump power, total idler power of ∼3.5 W was achieved at ∼3.45 and ∼3.55 µm under both pulsation modes. To the best of our knowledge, this is the first demonstration of both inter-pulse and intra-pulse dual-wavelength MIR generation via an OPO with an identical configuration. It is believed that our design may provide a promising solution to many practical applications including differential absorption lidar and tunable terahertz wave generation.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Pei Liu, Sicong Wang, Puyuan He, and Zhaowei Zhang
Opt. Lett. 43(9) 2217-2220 (2018)
Q. Fu, L. Xu, S. Liang, P. C. Shardlow, D. P. Shepherd, S.-U. Alam, and D. J. Richardson
Opt. Lett. 44(11) 2744-2747 (2019)
Yudi Wu, Sijing Liang, Qiang Fu, Thomas D. Bradley, Francesco Poletti, David J. Richardson, and Lin Xu
Opt. Lett. 47(14) 3600-3603 (2022)