Details

Autor(en) / Beteiligte

• Xu, Chang
• Guo, Chuan
• Yu, Hai-Bo
• Wang, Zhi-Min
• Zuo, Jun-Wei
• Xia, Yuan-Qin
• Bian, Qi
• Bo, Yong
• Gao, Hong-Wei
• Guo, Ya-Ding
• Zhang, Sheng
• Cui, Da-Fu
• Peng, Qin-Jun
• Xu, Zu-Yan

Titel

High pulse energy, high beam quality microsecond-pulse Ti:sapphire laser at 819.7 nm

Ist Teil von

• Applied physics. B, Lasers and optics, 2017-03, Vol.123 (3), p.1-6, Article 94

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2017

Quelle

SpringerLink Journals

Beschreibungen/Notizen

• In this letter, a high pulse energy and high beam quality 819.7 nm Ti:sapphire laser pumped by a frequency-doubled Nd:YAG laser is demonstrated. At incident pump energy of 774 mJ, the maximum output energy of 89 mJ at 819.7 nm with a pulse width of 100 μs is achieved at a repetition rate of 5 Hz. To the best of our knowledge, this is the highest pulse energy at 819.7 nm with pulse width of hundred microseconds for a Ti:sapphire laser. The beam quality factor M 2 is measured to be 1.18. This specific wavelength with the high pulse energy and high beam quality at 819.7 nm is a promising light source to create a polychromatic laser guide star together with a home-made 589 nm laser via exciting the sodium atoms in the mesospheric atmosphere.