Takano Tetsushi, Ogawa Hisashi, Ohae Chiaki, Katsuragawa Masayuki
Opt Express. 2021 Mar 1;29(5):6927-6934. doi: 10.1364/OE.415583.
High-power tunable lasers with good longitudinal and transverse modes are fundamental tools for exploring quantum physics. Here we report a high-power continuous-wave injection-locked titanium:sapphire laser with a low-loss cavity configuration, where only a laser crystal was installed in the laser cavity. Although the transverse mode was affected by a thermal lens formed in the laser crystal, the focal length of the thermal lens could be shifted via the temperature of the laser crystal holder or the pump power. As a result, we found a condition that 10 W single-frequency oscillation with a good transverse mode and a slope efficiency of 51% were achieved.
具有良好纵向和横向模式的高功率可调谐激光器是探索量子物理的基本工具。在此，我们报道了一种采用低损耗腔结构的高功率连续波注入锁定钛宝石激光器，该激光器腔内仅安装了一块激光晶体。尽管横向模式受到激光晶体中形成的热透镜的影响，但热透镜的焦距可通过激光晶体支架的温度或泵浦功率来改变。结果，我们发现了一种条件，即在该条件下实现了10W的单频振荡，横向模式良好，斜率效率为51%。
