Research on Nanosecond High-Pulse-Energy Regenerative Amplifier with Adjustable Pulse Duration and Third Harmonic Generation
We reported on a nanosecond regenerative amplified laser with a repetition rate of 1 kHz by employing laser diodes (LDs) with distinct wavelengths as both the seed laser and the pump source and utilizing Nd:YAG as the gain medium. The single-pulse energy was 1.58 mJ and the pulse duration was adjustable, ranging from 1 to 5 ns. Combining two oppositely oriented BBO crystals for second harmonic generation (SHG) and an LBO crystal for third harmonic generation (THG), a 355 nm laser with a single-pulse energy of 257 μJ was attained, corresponding to a THG efficiency of 16.2%.
Authors
- Hua Wang (ORCID: https://orcid.org/0009-0006-4082-4292)
- Wenlong Tian (ORCID: https://orcid.org/0000-0002-2965-0811)
- Jiangfeng Zhu (ORCID: https://orcid.org/0000-0002-5515-8441)
- Mengyao Cheng
- Yizhou Liu (ORCID: https://orcid.org/0000-0003-1483-8536)
Institutions
- Xidian University (CN)
- Shandong University (CN)
- Shaanxi University of Technology (CN)
Publication Details
- Journal
- Photonics
- Published
- 2025-04-08
- DOI
- https://doi.org/10.3390/photonics12040353
- Citations
- 1
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- Education Department of Shaanxi Province