Diode-pumped laser performance of Tm:Sc_2SiO_5 crystal at 1971 nm

• 作 者: 刘斌 郑丽和 王庆国 刘军芳 苏良碧 唐慧丽 刘杰 范秀伟 吴锋 罗平 赵衡煜 施佼佼 何诺天 李纳 李秋 郭超 徐晓东 王占山 徐军
• 机 构: School of Physics Science and Engineering, Institute for Advanced Study, Tongji University,Key Labor
• 出 处: Chinese Physics B
• 发表日期: 2017年08期
• 关键词: pumped pumping Czochralski FWHM dimensions reaches coated lasing tunable mirror

The 4-at.% Tm:Sc_2SiO_5 (Tm:SSO) crystal is successfully obtained by the Czochralski method. The optical properties and thermal conductivity of the crystal are investigated. The broad continuous wave(CW) laser output of(100)-cut Tm:SSO with the dimensions of 3 mm×3 mm×3 mm under laser diode(LD)-pumping is realized. The full width at half maximum(FWHM) of the laser emitting reaches up to 21 nm. The laser threshold of Tm:SSO is measured to be 0.43 W. Efficient diode-pumped CW laser performance of Tm:SSO is demonstrated with a slope efficiency of 25.9% and maximum output power of 934 mW.

The 4-at.% Tm: Sc_2SiO_5 (Tm: SSO) crystal is successfully obtained by the Czochralski method. The optical properties and thermal conductivity of the crystal are investigated. The broad continuous wave (CW) laser output of Tm: SSO with the dimensions of 3 mm × 3 mm × 3 mm under laser diode (LD) -umping is realized. The full width at half maximum (FWHM) of the laser emitting reaches up to 21 nm. The laser threshold of Tm : SSO is measured to be 0.43 W. Efficient diode-pumped CW laser performance of Tm: SSO is demonstrated with a slope efficiency of 25.9% and maximum output power of 934 mW.