Abstract

A laser diode (LD) stack pumped solid-state laser (DPL) with different cooling conditions was reported. The thermal lens was calculated and compared under different cooling conditions. The influence of the thermal lens effect on the output energy fluctuation of the DPL was studied. The LD stacks peak power was 12 kW with 1-kHz repetition frequency and 20% duty ratio. In the examination with nothing to cool the solid-state heat capacity laser (SSHCL), the output power was 1 J at the beginning, after 1 s it fell down to 50%, and with the water cooling the output power hardly fell down.

© 2007 Chinese Optics Letters

Multi-kW-class 1.64 μm Er³⁺:YAG lasers based on heat-capacity operation [Invited]

Marc Eichhorn
Opt. Mater. Express 1(3) 321-331 (2011)

High-efficiency multi-kilowatt Er³⁺:YAGsolid-state heat-capacity laser

Marc Eichhorn
Opt. Lett. 36(7) 1245-1247 (2011)

Jet-type, water-cooled heat sink that yields 255-W continuous-wave laser output at 808 nm from a 1-cm laser diode bar

Hirofumi Miyajima, Hirofumi Kan, Takeshi Kanzaki, Shin-ichi Furuta, Masanobu Yamanaka, Yasukazu Izawa, and Sadao Nakai
Opt. Lett. 29(3) 304-306 (2004)

Semianalytical thermal analysis of the heat capacity of YAG laser rods

Peng Shi, Bing Bai, Linli Zhang, Long Li, and Yu Xin
Appl. Opt. 48(35) 6701-6707 (2009)

Analytical solutions for anisotropic time-dependent heat equations with Robin boundary condition for cubic-shaped solid-state laser crystals

Mohammad Sabaeian
Appl. Opt. 51(30) 7150-7159 (2012)