Polarized spectral properties and 1.5–1.6 μm laser operation of Er:Sr3Yb2(BO3)4 crystal |
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| Affiliation: | 1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China;2. Graduate University of the Chinese Academy of Sciences, Beijing 100039, China;1. College of Physics, Qingdao University, Qingdao 266071, China;2. Key Laboratory of Photonics Materials and Technology in Universities of Shandong (Qingdao University), Qingdao 266071, China;3. CRYSTECH Inc., 266107 Qingdao, China;1. College of Physics, Qingdao University, Qingdao 266071, China;2. Key Laboratory of Photonics Materials and Technology in Universities of Shandong (Qingdao University), Qingdao 266071, China;3. Institute of Complexity Science, Qingdao University, Qingdao 266071, China;4. CRYSTECH Inc., 266107 Qingdao China;5. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong;6. Beijing Synchrotron Radiation Laboratory, Institute of High Energy, Beijing 100039, China;1. Key Laboratory of Optoelectronic Materials Chemistry and Physics of CAS, Fujian Institute of Research on the Structure of Matter, CAS, Fuzhou, Fujian 350002, PR China;2. University of Chinese Academy of Sciences, Beijing 100039, PR China;3. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, CAS, Fuzhou 350002, PR China |
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| Abstract: | Undoped and Er3+-doped Sr3Yb2(BO3)4 crystals were grown by the Czochralski method. Room temperature polarized spectral properties of the Er:Sr3Yb2(BO3)4 crystal were investigated. The efficiency of the energy transfer from Yb3+ to Er3+ ions in this crystal was calculated to be about 95%. End-pumped by a diode laser at 970 nm in a hemispherical cavity, a 0.75 W quasi-CW laser at 1.5–1.6 μm with a slope efficiency of 7% and an absorbed pump threshold of 3.8 W was achieved in a 0.5-mm-thick Z-cut crystal glued on a 5-mm-thick pure YAG crystal with UV-curable adhesive. |
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| Keywords: | Spectroscopic properties |
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