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A single wavelength 1339 nm Nd:YAP pulsed laser |
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| Authors: | Yong Wei Ge Zhang Cheng-Hui Huang Ling-Xiong Huang Xiao-Jun Ou-Yang Guo-Fu Wang |
| Institution: | a Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China b Graduate University of the Chinese Academy of Sciences, Beijing 100039, China c School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, China |
| Abstract: | The laser oscillating at a weak line of Nd:YAP around 1.3-μm realized though selecting polarization is described. The energy level transitions of Nd:YAP crystal and their polarization properties were analyzed. A thin-film polarizer was adopted to restrain the oscillating of the c-axis strong polarized spectral lines and a reasonable transmittance was designed to suppress the a-axis polarized 1064 nm strong line lasing, and then a-axis polarized 1339 nm pulse laser of 336 mJ for free running mode and 64 mJ for electro-optic Q-switched mode were successfully achieved, corresponding to pulse widths of 180 μs and 35 ns, respectively. This method of selecting polarization to realize weak line oscillating is significant for anisotropic laser crystals doped with Nd3+ ions to select the particular transitions. |
| Keywords: | 1339 nm Nd:YAP Pulse laser Selecting polarization |
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