High-beam-quality, efficient operation of passively Q-switched Yb:YAG/Cr:YAG laser pumped by photonic-crystal surface-emitting laser

Autor: Takahiro Sugiyama, Hiro Nishida, Akiyoshi Watanabe, Noriaki Miyanaga, Kazuyoshi Hirose, Kenji Ishizaki, Junji Kawanaka, Xiaoyang Guo, Kana Fujioka, Shigeki Tokita, Susumu Noda
Rok vydání: 2017
Předmět:
Zdroj: Applied Physics B. 123
ISSN: 1432-0649
0946-2171
Popis: A passively Q-switched Yb:YAG/Cr:YAG laser pumped by a photonic-crystal surface-emitting laser (PCSEL) was developed. Yb:YAG crystal was cryogenically cooled by liquid nitrogen at 77 K. Excellent Gaussian beam profile (M 2 = 1.02) and high slope efficiency of 58% were demonstrated without using a coupling optics between a laser material and PCSEL.
Databáze: OpenAIRE