Search

Your search keyword '"Zong, Nan"' showing total 11 results
Start Over Author "Zong, Nan" Journal chinese physics letters
11 results on '"Zong, Nan"'

4. A Continuous-Wave Diode-Side-Pumped Tm:YAG Laser with Output 51 W

Author

Xu Jialin, Zong Nan, XU Zu-Yan, Peng Qin-Jun, Xu Yi-Ting, Lu Yuan-Fu, Zhang Xiao-Fu, Bo Yong, Li Cheng-Ming, Cui Qian-Jin, and Cui Da-Fu

Subjects
Materials science, business.industry, Slope efficiency, Energy conversion efficiency, Thermal effect, General Physics and Astronomy, Laser, law.invention, Wavelength, Screw thread, Optics, law, Continuous wave, Optoelectronics, business, Diode
Abstract

A compact diode-side-pumped Tm:YAG laser is presented, which can output 51 W of cw power at 2.02μm. The Tm:YAG rod is side pumped by nine diode arrays with the central wavelength of 783nm and the with bandwidth of about 2.5 nm at 25° C. To decrease the thermal effect on the both ends and dissipate the heat effectively, one composite Tm:YAG rod with the undoped YAG end caps and the screw threads on the side surface of the rod is used as the laser crystal. The maximum optical-to-optical conversion efficiency of the 2.02-μm laser output is 14.2%, with a slope efficiency of 26.8%.

Published
2008

5. Coaxial Multi-Wavelength Generation in YVO4 Crystal with Stimulated Raman Scattering Excited by a Picosecond-Pulsed 1064 Laser.

Author

Hao, Jing-Jie, Tu, Wei, Zong, Nan, Shen, Yu, Zhang, Shen-Jin, Bo, Yong, Peng, Qin-Jun, and Xu, Zu-Yan

Subjects
STIMULATED Raman scattering, BRILLOUIN scattering, RAMAN scattering, RAMAN lasers, LASERS, RAMAN spectroscopy, CRYSTALS
Abstract

The multiwavelength characteristics of stimulated Raman scattering (SRS) in YVO4crystal excited by a picosecond laser at 1064nm are investigated theoretically and experimentally. Laser output with seven wavelengths is achieved coaxially and synchronously at 894, 972, 1175, 1312, 1486, 1713 and 2022nm in a YVO4crystal. The maximum total Raman output energy is as high as 2.77 mJ under the pump energy of 7.75 mJ. A maximum total Raman conversion efficiency of 47.8% is obtained when the pump energy is 6.54 mJ. This is the highest order of Stokes components and the highest output energy generated by YVO4reported up to date. This work expands the Raman spectrum of YVO4crystal to the near-IR regime, with seven wavelengths covered at the same time, paving the way for new wavelength generation in the near-IR regime and its multiwavelength application. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

7. Q-Switched Tm:YAG Laser Intracavity-Pumped by a 1064 nm Laser

Author

Xu Jialin, Peng Qin-Jun, Guo Ya-Ding, MA Qing-Lei, Bo Yong, Cui Da-Fu, XU Zu-Yan, Yang Feng, Zong Nan, and Xie Shi-Yong

Subjects
Dye laser, Materials science, business.industry, General Physics and Astronomy, Laser pumping, Laser, Q-switching, law.invention, X-ray laser, Optics, Solid-state laser, law, Diode-pumped solid-state laser, business, Pulse-width modulation
Abstract

We report a Q-switched 2-μm Tm:YAG laser based on intracavity-pumped by a 1064-nm Nd:YAG laser operating at room temperature for the first time. An average output power of 5.1 W is obtained with the repetition rate of 30 kHz and a pulse width of 300 ns. In addition, we demonstrate a 12.5-W continuous-wave 2-μm Tm:YAG laser, which is, to our best knowledge, the highest power for intracavity-pumping configuration.

Published
2009

8. High-Efficiency High-Power Nd: YAG Laser under 885 nm Laser Diode Pumping

Author

Zong Nan, Peng Qin-Jun, XU Zu-Yan, Cui Da-Fu, Zhang Xiao-Fu, Yang Jing, and LI Fang-Qin

Subjects
Materials science, Laser diode, business.industry, Slope efficiency, Energy conversion efficiency, General Physics and Astronomy, Laser pumping, Laser, law.invention, X-ray laser, Optics, law, Nd:YAG laser, Diode-pumped solid-state laser, Optoelectronics, business
Abstract

A high-efficiency high-power Nd:YAG laser under 885nm laser diode (LD) pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized. The maximum output power at 1064 nm is 87W under the absorbed pump power 127.7W, corresponding to a slope efficiency of 72.4% and an optical-optical efficiency of 68.1%. The optical-optical efficiency is 58.4% for the pump power emitted directly from the LD. To our best knowledge, this is the maximal optical-optical conversion efficiency obtained for the LD end-pumped Nd:YAG lasers so far.

Published
2009

9. Comparison of Nd:YAG Ceramic Laser Pumped at 885 nm and 808 nm

Author

Pan Yu-Bai, Cui Da-Fu, Wang Baoshan, Feng Xi-Qi, Peng Qin-Jun, Zong Nan, Zhang Xiao-Fu, XU Zu-Yan, and MA Qing-Lei

Subjects
Materials science, business.industry, Slope efficiency, Doping, General Physics and Astronomy, Laser, Electromagnetic radiation, law.invention, Optical pumping, Optics, law, Nd:YAG laser, visual_art, visual_art.visual_art_medium, Laser beam quality, Ceramic, business
Abstract

Laser performance of 1064 nm domestic Nd:YAG ceramic lasers for 885 nm direct pumping and 808 nm traditional pumping are compared. Higher slope efficiency of 34% and maximum output power of 16.5 W are obtained for the 885 nm pump with a 6 mm length 1 at.% Nd:YAG ceramic. The advantages for 885 nm direct pumping are discussed in detail. This pumping scheme for highly doping a Nd:YAG ceramic laser is considered as an available way to generate high power and good beam quality simultaneously.

Published
2009

10. A Continuous-Wave Diode-Side-Pumped Tm:YAG Laser with Output 51 W.

Author

Zhang Xiao, Xu Yi, Li Cheng, Zong Nan, Xu Jia, Cui Qian, Lu Yuan, Bo Yong, Peng Qin, Cui Da, Fu and, and Xu Zu

Subjects
DIODES, LASERS, BANDWIDTHS, ENERGY dissipation
Abstract

A compact diode-side-pumped Tm:YAG laser is presented, which can output 51 W of cw power at 2.02mm. The Tm:YAG rod is side pumped by nine diode arrays with the central wavelength of 783nm and the with bandwidth of about 2.5 nm at 25deg C. To decrease the thermal effect on the both ends and dissipate the heat effectively, one composite Tm:YAG rod with the undoped YAG end caps and the screw threads on the side surface of the rod is used as the laser crystal. The maximum optical-to-optical conversion efficiency of the 2.02-mm laser output is 14.2%, with a slope efficiency of 26.8%. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

11. Q-Switched Tm:YAG Laser Intracavity-Pumped by a 1064 nm Laser.

Author

Ma Qing, Zong Nan, Xie Shi, Yang Feng, Guo Ya, Xu Jia, Bo Yong, Peng Qin, Cui Da, Fu and, and Xu Zu

Subjects
*SOLID-state lasers, *OPTICAL pumping, *ULTRASHORT laser pulses, *ND-YAG lasers, *TEMPERATURE effect, *WAVE mechanics
Abstract

We report a Q-switched 2-mm Tm:YAG laser based on intracavity-pumped by a 1064-nm Nd:YAG laser operating at room temperature for the first time. An average output power of 5.1 W is obtained with the repetition rate of 30 kHz and a pulse width of 300 ns. In addition, we demonstrate a 12.5-W continuous-wave 2-mm Tm:YAG laser, which is, to our best knowledge, the highest power for intracavity-pumping configuration. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results