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Abstract In this paper, a multi-segment bonded crystal model of YAG/Tm:YAG/ YAG/Tm:YAG/YAG structure is proposed firstly and the thermal effect of LD double-end pumped multi-segment bonded Tm:YAG crystal is investigated.… Click to show full abstract
Abstract In this paper, a multi-segment bonded crystal model of YAG/Tm:YAG/ YAG/Tm:YAG/YAG structure is proposed firstly and the thermal effect of LD double-end pumped multi-segment bonded Tm:YAG crystal is investigated. The thermal distribution is simulated and the thermal focal length of the multi-segment bonding is calculated and measured, which comfirms that it can effectively alleviate the thermal effect. In experiment, when the absorbed power is 26 W the laser with a center wavelength of 2014.52 nm and an output power of 8.27 W is obtained, simultaneously optical-to-optical conversion efficiency is 31.8% and the slope efficiency is 38%.
Journal Title: Optics Communications
Year Published: 2021
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