Welcome to JOURNAL OF SYNTHETIC CRYSTALS! Today is Share:

JOURNAL OF SYNTHETIC CRYSTALS ›› 2024, Vol. 53 ›› Issue (11): 1877-1883.

Special Issue: 高功率激光用晶体和透明陶瓷

Previous Articles     Next Articles

Growth, Spectroscopic Properties and Laser Performance of Nd∶ASL Single Crystal Fibers

GUO Jun1, LIU Jian1, WANG Zebin1, CHEN Peng1, SONG Qingsong2, MA Jie1, WANG Qingguo2, XU Xiaodong1, XU Jun2   

  1. 1. School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China;
    2. School of Physical Science and Engineering, Tongji University, Shanghai 200092, China
  • Received:2024-09-23 Online:2024-11-15 Published:2024-12-09

Abstract: Nd3+-doped Sr0.7La0.3Mg0.3Al11.7O19 (Nd∶ASL) single crystal fibers with different Nd3+ concentration were successfully grown by the micro-pulling-down (μ-PD) method. The crystal structure, polarized spectroscopic properties and continuous wave laser performance were studied. The Judd-Ofelt parameters Ω2, Ω4 and Ω6 are obtained to be 1.093×10-20, 2.285×10-20 and 2.117×10-20 cm2, respectively. The fluorescence lifetime of 0.5%, 1.0%, 3.0% and 5.0%Nd∶ASL single crystal fibers are 375,398,384 and 363 μs, respectively. A continuous wave laser is obtained by pumping with a commercial laser diode of 800 nm emission wavelength. The maximum output power is 1.08 W at 1 055 nm with a slope efficiency of 18.5%. All the results indicate that Nd3+-doped ASL single crystal fiber grown by the μ-PD method has potential as a laser gain medium for laser system.

Key words: micro-pulling-down method, single crystal fiber, Nd:ASL, crystal growth, spectral property, laser performance

CLC Number: