A Compact-Intracavity Frequency-Doubling Nd:YAG Laser with 1.3 W Dual-Wavelength (659.6 nm/669.4 nm) Light Output |
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Authors: | Chunting Wu Jing Xu Rui Sun Xinyu Chen Guangyong Jin |
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Affiliation: | 1.Jilin Key Laboratory of Solid-State Laser Technology and Applications,Changchun University of Science and Technology,Changchun,China |
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Abstract: | Terahertz wave radiation has important applications in medical instrumentation, optical communication, and so on. In this paper, we demonstrate a dual-wavelength (659.6 nm/669.4 nm) light output of a compact intracavity frequency-doubling Nd:YAG laser. We achieve a maximum output power of 1.3 W at central wavelengths of 659.6 and 669.4 nm with linewidths of 57 and 74 pm, respectively. The power instability at the maximum output power is less than 1%, and the beam quality is 1.5. This dual-wavelength laser provides a potential source for generating a coherent terahertz wave radiation of 6.46 THz by the nonlinear optical difference frequency method. |
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