Laser-Heated Pedestal Growth Method and Characterization of Er∶YAP Single Crystal Fibers

Abstract

Abstract: In this work, rapid sythesis strategy of Er∶YAP crystals with different doping concentrations were developed using a reverse laser-heated pedestal grwoth (LHPG) method. High quality Er∶YAP single crystal fibers of ø0.8 mm×65 mm were obtained using LHPG process by optimizing growth parameters to inhibit defects such as s color centers, cracking, and diameter fluctuations during the growth process. Spectroscopic characterization of Er∶YAP crystals indicates that there is a strong energy transfer process between Er³⁺ when the doping concentration reaches 5% (atomic fraction), which is favorable for generating high-efficient mid-infrared lasers.

Key words: mid-infrared laser, Er∶YAP crystal, laser-heated pedestal growth method, single crystal fiber, energy transfer

CLC Number:

O734

WU Xu, ZHANG Zhen, ZHANG Zhonghan, WU Anhua, SU Liangbi. Laser-Heated Pedestal Growth Method and Characterization of Er∶YAP Single Crystal Fibers[J]. Journal of Synthetic Crystals, 2023, 52(7): 1308-1316.

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