Structure,spectroscopic properties and laser performance of Nd:YNbO4 at 1066 nm |
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| Affiliation: | 1. Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Anhui Province, Hefei 230031, PR China;2. University of Science and Technology of China, Hefei 230026, PR China;1. Thin Film Centre, PSG College of Technology, Coimbatore 641 004, India;2. Center for Nanomaterials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bangalore 560064, India;3. Department of Physics, Coimbatore Institute of Technology, Coimbatore 641 014, India;4. Department of Instrumentation, Indian Institute of Science, Bangalore 560 012, India;1. School of Pure and Applied Physics, M.G. University, Kottayam 686560, India;2. Raman Research Institute, C.V. Raman Avenue, Bangalore 560080, India;3. Department of Optoelectronics, University of Kerala, Kariavattom, Thiruvananthapuram, Kerala 695581, India;1. Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland;2. Institute of Applied Physics, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland;3. Institute of Low Temperature and Structure Research of Polish Academy of Sciences, Okólna 2, 50-422 Wroclaw, Poland;4. NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland;5. Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland;6. Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland;1. Mechanical Sci. & Eng., Huazhong University of Science & Technology, Wuhan 430074, China;2. Cross-disciplinary Institute of Engineering Sciences, School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430072, China;3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;4. Synfuels China Co. Ltd Huairou, Beijing 101407, China;5. Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;1. Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Sakhyanovoy St., 6, Ulan-Ude, 670047, Buryat Republic, Russia;2. Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, RAS, 50 / 38 Akademgorodok, Krasnoyarsk, 660036, Russia;3. Siberian Federal University, 82 Svobodniy Av., Krasnoyarsk, 660041, Russia |
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| Abstract: | We have demonstrated continuous wave (CW) laser operation of Nd:YNbO4 crystal at 1066 nm for the first time. A maximum output power of 1.12 W with the incident power of 5.0 W is successfully achieved corresponding to an optical-to-optical conversion efficiency of 22.4% and a slope efficiency of 24.0%. The large absorption cross section (8.7 × 10−20 cm2) and wide absorption band (6 nm) at around 808 nm indicates the good pumping efficiency by laser diodes (LD). The small emission cross section (29 × 10−20 cm2) and relative long lifetime of the 4F3/2 → 4I11/2 transition indicates good energy storage capacity of Nd:YNbO4. Moreover, the raw materials of Nd:YNbO4 are stable, thus, it can grow high-quality and large-size by Czochralski (CZ) method. Therefore the Nd:YNbO4 crystal is a potentially new laser material suitable for LD pumping. |
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| Keywords: | Structure Spectroscopic properties Laser performance |
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