Tunable single and multiwavelength continuous-wave c-cut Nd:YVO4 laser |
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| Authors: | G Shayeganrad Y-C Huang L Mashhadi |
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| Institution: | 1. Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Electrical Engineering, National Tsinghua University, Hsinchu, 30013, Taiwan
2. Institute of Photonics Technologies, Department of Electrical Engineering, National Tsinghua University, Hsinchu, 30013, Taiwan
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| Abstract: | We report a discretely tunable, single and multiwavelength continuous-wave diode-end-pumped laser with a c-cut Nd:YVO4 crystal lasing on the 4F3/2?C4I11/2 intermanifold transitions and an intracavity sub-THz free-spectral-range etalon. Experimental results show that it is tunable in the discrete regions of 1066.5?C1066.8, 1083.1?C1084.6, and 1087.2?C1088.2?nm and operates simultaneously at dual-wavelengths of (1084.6, 1087.4), (1066.5, 1088.0), (1066.8, 1083.3) nm by changing the angle of an intracavity etalon with 0.67 THz free-spectral range. With a proper etalon angle, the laser can also simultaneously oscillate at four wavelengths of 1066.9, 1082.9, 1085.7, and 1088.3?nm with a total output power of 1.2?W at an incident diode pump power of 15?W. Similar performance of the laser at different wavelengths was also achieved by using a 0.88?THz free-spectral-range etalon in the same laser cavity. |
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