Compact OP-VECSEL-pumped Er:Yb:YAB microchip laser with M<sup>2</sup> < 1.5 at 1.55 µm
An Er:Yb:YAB crystal laser emitting at 1.55 µm, optically pumped by a vertical external cavity surface emitting 980-nm laser (OP-VECSEL), is reported in this study. To the best of our knowledge, this is the first demonstration of an Er:Yb:YAB laser pumped by an OP-VECSEL. The OP-VECSEL was utilized to pump the Er:Yb:YAB microchip through plano-convex lens. By adjusting the cooling temperature, the output wavelength of OP-VECSEL was tuned to the crystal's absorption peak. The maximum output power of 0.232 W at 1.55 µm with a pump power of 2.32 W at 980 nm was achieved, with a cavity length less than 100 mm. The beam quality factors of the laser output are M<sup>2</sup><sub>x</sub> = 1.42 and M<sup>2</sup><sub>y</sub> = 1.38, respectively, better than those of single-end and/or dual-end pumped Er:Yb:YAB microchip lasers.
Authors
- Hui Dong Su (ORCID: https://orcid.org/0000-0001-7653-3426)
- Yidong Huang (ORCID: https://orcid.org/0000-0003-4239-9833)
- Zhongxi Lin (ORCID: https://orcid.org/0000-0003-4789-4833)
- Wentao Wang (ORCID: https://orcid.org/0000-0001-6496-072X)
- Weibin Qiu (ORCID: https://orcid.org/0000-0001-6234-0711)
- Yujin Chen (ORCID: https://orcid.org/0000-0001-5310-0169)
- Pengfei Zhou (ORCID: https://orcid.org/0009-0004-2095-188X)
- Xingli Zhong (ORCID: https://orcid.org/0009-0004-3085-5365)
Institutions
- Huaqiao University (CN)
- Fujian Institute of Research on the Structure of Matter (CN)
- Tan Kah Kee Innovation Laboratory (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2025-05-02
- DOI
- https://doi.org/10.1364/oe.563249
- Primary Topic
- Semiconductor Lasers and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00