Dr. Xinyu Chen Profile

Dr. Xinyu Chen

at Changchun Univ of Science and Technology

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Publications (6)

Proceedings Article | 18 December 2014 Paper

Room temperature operation of 2.67-mJ pulse LD end pumped Q-switched Tm:YAG laser

Xuedi Song, Chunting Wu, Xinyu Chen, Kai Yu, Guangyong Jin

Proceedings Volume 9295, 929512 (2014) https://doi.org/10.1117/12.2071604

KEYWORDS: Pulsed laser operation, Q switched lasers, Wind energy, Q switching, LIDAR, Laser development, Crystals, Laser applications, Absorption, Light sources

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SPIE Journal Paper | 2 December 2013

High-repetition-rate tunable mid-infrared optical parametric oscillator based on MgO: periodically poled lithium niobate

Yongji Yu, Xinyu Chen, Jing Zhao, Chao Wang, Chunting Wu, Guangyong Jin

OE, Vol. 53, Issue 06, 061604, (December 2013) https://doi.org/10.1117/12.10.1117/1.OE.53.6.061604

KEYWORDS: Optical parametric oscillators, Crystals, Mid-IR, Neodymium, Lithium niobate, Q switched lasers, Q switching, Mirrors, Electro optics, Reflectivity

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Proceedings Article | 17 September 2013 Paper

86 W continuous-wave diode side-pumped 1341.4nm Nd:YAP laser

Yong-ji Yu, Jing Zhao, Xin-yu Chen, Chao Wang, Chun-ting Wu, Guang-yong Jin

Proceedings Volume 8904, 89041O (2013) https://doi.org/10.1117/12.2035107

KEYWORDS: Crystals, Semiconductor lasers, Continuous wave operation, Laser crystals, Diodes, High power lasers, Mirrors, Laser applications, Neodymium lasers, Resonators

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Proceedings Article | 17 September 2013 Paper

Research on output characteristics of continuous-wave operation of Ho:YAG laser pumped by Tm:YLF laser

Xinyu Chen, Jiaqi Bie, Zhulong Huang, Xuedi Song, Guangyong Jin

Proceedings Volume 8904, 890419 (2013) https://doi.org/10.1117/12.2034596

KEYWORDS: Holmium, Upconversion, Laser damage threshold, Laser crystals, Crystals, Thulium, Mirrors, Reflectivity, Continuous wave operation, YAG lasers

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Proceedings Article | 17 September 2013 Paper

LD dual-end-pumped CW Tm:YLF laser

Xin-yu Chen, Yu Zhang, Yong-ji Yu, Chao Wang, Guang-yong Jin

Proceedings Volume 8904, 890417 (2013) https://doi.org/10.1117/12.2034533

KEYWORDS: Continuous wave operation, Resonators, Crystals, Mirrors, Thulium, Laser crystals, Ions, Laser damage threshold, Upconversion, Thermal effects

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We report on a LD dual-end-pumped 792nm continuous wave operation Tm:YLF laser. Firstly, the rate equation of LD end-pumped CW operation Tm:YLF laser were established, in which the energy transfer upconversion and without energy transfer upconversion under continuous-wave considerate were considered, as well the pump threshold and the slope efficiency of the laser system were analyzed. Simultaneously, the cavity stability condition and the pattern matching of the plano- concave resonator were analyzed according to ABCD Matrix theory. Comparing respectively the laser threshold and the slope efficiency and optical-optical conversion efficiency under circumstances which the output mirror transmittance of 15% and 23%. In addition, the M2 of the output laser were contrasted and analyzed in adjusting the resonator cavity length by using different radius of curvature of the output mirror in 150mm, 200mm and 300mm all in the above case. As the process of thermal lens focal length changing greater than 90mm, it exhibited that the two fundamental modes in the cavity resonator matched well in numerical simulation when the radius of curvature of the output mirror was 300mm, as well the two fundamental modes matched well when it more than 100mm in a certain pump power. We designed a single LD dual-end-pumped continuous wave operation Tm:YLF laser. Using Tm:YLF (3 at.%) crystal for gain medium, which the size was 3×3×14mm³. In experiments, the Tm:YLF laser crystal keeps 291K and the temperature control method is water cooling. The length of the resonator was 135mm when L shape plano-concave resonator was applied, and the radius of curvature output mirror was 300mm, as well as the temperature of the Tm:YLF laser crystal was 291K. The output laser we observed by this system and the central laser wavelength was 1944nm. The threshold power was 8.11W and the highest output power reaches to 4.01W when the totally input pump power was 17W, and the optical conversion efficiency was 23.6%. The far-field divergence angle was 3.8mrad after calculation. Respectively. The experimental results are coinciding with the theory.

Proceedings Article | 29 August 2009 Paper

Q-switched Nd:YAG laser alternate symmetric side pumped by diode arrays

Xin-yu Chen, Guang-yong Jin, Chao Wang, Yong-ji Yu, Da-wei Hao

Proceedings Volume 7382, 73820G (2009) https://doi.org/10.1117/12.835318

KEYWORDS: Crystals, Nd:YAG lasers, Semiconductor lasers, Q switched lasers, Pulsed laser operation, Electro optics, Q switching, Neodymium, Laser crystals, Diodes

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