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Crystal growth, optical properties, and laser operation of Yb3+-doped NYW single crystal |
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| Authors: | Y Cheng X D Xu X B Yang Z Xin D H Cao J Xu |
| Institution: | 1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China 2. Graduate School of the Chinese Academy of Sciences, Beijing, 100039, China 3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China 4. School of Information and Electric Engineering, Shandong Jianzhu University, Jinan, 250101, China |
| Abstract: | Laser crystal Yb3+-doped NaY(WO4)2 (Yb:NYW) with excellent quality has been grown by Czochralski technique. The rocking curves from (400) plane of as-grown Yb:NYW crystal was measured and the full-width value at half-maximum was 19.92″. The effective segregation coefficients were measured by the X-ray fluorescence method. The polarized absorption spectra and the fluorescence spectra of Yb:NYW crystal were measured at room temperature. The fluorescence decay lifetime of Yb3+ ion in NYW crystal has been investigated. The spectroscopic parameters of Yb:NYW crystal are calculated and compared with those of Yb:YAG crystal. A continuous wave output power of 3.06 W at 1031 nm was obtained with a slope efficiency of 42% by use of diode pumping. |
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