Experimental study on three-longitudinal-mode CW laser output of LD-pumped Nd:YAG thin disk

Dongbing He; Changming Zhao; Zhe Guan; Jinhua Li; Haiyang Zhang

doi:10.1117/12.2295514

12 January 2018 Experimental study on three-longitudinal-mode CW laser output of LD-pumped Nd:YAG thin disk

Dongbing He, Changming Zhao, Zhe Guan, Jinhua Li, Haiyang Zhang

Proceedings Volume 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 106190R (2018) https://doi.org/10.1117/12.2295514
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

The increase of the numbers of laser channel is beneficial to the improvement of laser communication capacity, and a three-longitudinal-mode Nd:YAG laser with a central wavelength of 1.06 μm is studied. The three-longitudinal-mode continuous-wave(CW) laser output is obtained in 808nm LD-pumped 2.4mm Nd: YAG thin disk with a slope efficiency of 11.65% at 20°, the output power of the CW laser is 11.9mW when the power of the pumping is 365mW, and the frequency spacing is 35.4GHz.The maximum output power of 60.3mW is obtained under the 801mW pumped power. The longitudinal mode gain competition is verified in the experiment and the three-longitudinal-mode laser can maintain a stable output when the pumped power reaches 667mW. With the pump power increases, the frequency of laser output power increases, also accompanied by the phenomenon of frequency drift.

Citation Download Citation

Dongbing He, Changming Zhao, Zhe Guan, Jinhua Li, and Haiyang Zhang " Experimental study on three-longitudinal-mode CW laser output of LD-pumped Nd:YAG thin disk ", Proc. SPIE 10619, 2017 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 106190R (12 January 2018); https://doi.org/10.1117/12.2295514

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KEYWORDS

Nd:YAG lasers

Continuous wave operation

Laser communications

Crystals

Semiconductor lasers

Laser resonators

Laser crystals

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