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Start Over Author "Bo Yong" Journal optics letters
20 results on '"Bo Yong"'

3. 22.9 W CW single-frequency laser at 671 nm by frequency doubling of Nd:YVO

Author

Yi-Xuan, Zhang, Zhi-Min, Wang, Zi-Han, Zhou, Feng-Feng, Zhang, Xu-Chao, Liu, Nan, Zong, Bo, Yong, and Qin-Jun, Peng

Abstract

A stable, 22.9 W, 671 nm single-frequency laser using a type II noncritically phase-matched external-cavity frequency doubling is demonstrated. The output power of the fundamental laser is 32.1 W; the corresponding conversion efficiency of frequency doubling from 1342 to 671 nm is calculated to be 71.3%. The

Published
2020

5. 24.6 kW near diffraction limit quasi-continuous-wave Nd:YAG slab laser based on a stable–unstable hybrid cavity

Author

Guo, Yading, primary, Peng, Qinjun, additional, Bo, Yong, additional, Chen, Zhongzheng, additional, Li, Yang, additional, Zhang, Lin, additional, Shao, Chongfeng, additional, Yuan, Lei, additional, Wang, Baoshan, additional, Xu, Jian, additional, Xu, Jialin, additional, Gao, Hongwei, additional, Xu, Yiting, additional, Lai, Boheng, additional, Su, Chunxuan, additional, Ma, Shiqing, additional, and Cheng, Tao, additional

Published
2020
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6. 22.9 W CW single-frequency laser at 671 nm by frequency doubling of Nd:YVO4 laser

Author

Nan Zong, Qinjun Peng, Yi-Xuan Zhang, Fengfeng Zhang, Zi-Han Zhou, Zhimin Wang, X. M. Liu, and Bo Yong

Subjects
Materials science, High power lasers, business.industry, Energy conversion efficiency, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, Power (physics), law.invention, 010309 optics, Optics, law, 0103 physical sciences, 0210 nano-technology, business, Laser beams
Abstract

A stable, 22.9 W, 671 nm single-frequency laser using a type II noncritically phase-matched external-cavity frequency doubling is demonstrated. The output power of the fundamental laser is 32.1 W; the corresponding conversion efficiency of frequency doubling from 1342 to 671 nm is calculated to be 71.3%. The M 2 factors are measured to be 1.10 and 1.08 in the x and y directions, respectively. To the best of our knowledge, 22.9 W is the highest power obtained for a 671 nm single-frequency laser.

Published
2020

9. High-energy single-frequency 167 nm deep-ultraviolet laser

Author

Li, Jia-Jia, primary, Zhang, Feng-Feng, additional, Wang, Zhi-Min, additional, Xu, Yi-Chen, additional, Liu, Xu-Chao, additional, Zong, Nan, additional, Zhang, Shen-Jin, additional, Xu, Feng-Liang, additional, Yang, Feng, additional, Yuan, Lei, additional, Kou, Yang, additional, Bo, Yong, additional, Cui, Da-Fu, additional, Peng, Qin-Jun, additional, Wang, Xiao-Yang, additional, Liu, Li-Juan, additional, Chen, Chuang-Tian, additional, and Xu, Zu-Yan, additional

Published
2018
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12. High-repetition-rate 100??W level sodium beacon laser for a multi-conjugate adaptive optics system

Author

Bian, Qi, Bo, Yong, Zuo, Jun-wei, Feng, Lu, Gao, Hong-wei, Yuan, Lei, Cui, Da-fu, Peng, Qin-jun, Chen, Hong-bin, and Xu, Zu-yan

Abstract

A 100 W level kilohertz repetition-rate microsecond (µs)-pulse all-solid-state sodium beacon laser at 589 nm is demonstrated for the first time, to the best of our knowledge, via combining two independent µs-pulsed lasers. Each beamlet is generated by the sum-frequency mixing of pulsed 1064 and 1319 nm lasers in a lithium triborate (LBO) crystal, which operate at 500 Hz pulse repetition frequency with 61 W $p$p-polarized and 53 W $s$s-polarized output, respectively. An incoherent sequence combining technology of polarized laser beams is employed to add the two beamlets. The average power of the combined beam is up to 107.5 W with a combining efficiency of 94.3%. The combined beam has a 1 kHz repetition rate with ${\sim}{120}\;\unicode{x00B5} {\rm s}$∼120µs pulse duration and beam quality ${M^2} = {1.41}$M^2=1.41. The central wavelength with a linewidth of ${\sim}{0.3}\;{\rm GHz}$∼0.3GHz is locked to a sodium ${{\rm D}_{2a}}$D_2a absorption line. To the best of our knowledge, this is a record-high power operating at kilohertz for µs-pulsed solid-state sodium beacon lasers.

Published
2020

13. 24.6??kW near diffraction limit quasi-continuous-wave Nd:YAG slab laser based on a stable–unstable hybrid cavity

Author

Guo, Yading, Peng, Qinjun, Bo, Yong, Chen, Zhongzheng, Li, Yang, Zhang, Lin, Shao, Chongfeng, Yuan, Lei, Wang, Baoshan, Xu, Jian, Xu, Jialin, Gao, Hongwei, Xu, Yiting, Lai, Boheng, Su, Chunxuan, Ma, Shiqing, and Cheng, Tao

Abstract

A 24.6 kW quasi-continuous-wave (QCW) Nd-doped yttrium aluminum garnet (Nd:YAG) slab laser is proposed in this Letter. The laser is based on a stable–unstable hybrid cavity. A stable and an unstable resonator were constructed along orthogonal directions in the aperture of the slab. Due to features of the hybrid cavity, the slab laser achieves both high efficiency of power extraction with excellent beam quality and compactness with simplicity. Average output power of 24.6 kW with 47% optical-to-optical efficiency is achieved in the experiment. The beam quality of the output beam is 1.5 times diffraction limits after correction of adaptive optics. The repetition frequency and pulse width of the laser are 400 Hz and 200 μs.

Published
2020

14. High-power QCW microsecond-pulse solid-state sodium beacon laser with spiking suppression and D_2b re-pumping

Author

Bian, Qi, primary, Bo, Yong, additional, Zuo, Jun-wei, additional, Guo, Chuan, additional, Xu, Chang, additional, Tu, Wei, additional, Shen, Yu, additional, Zong, Nan, additional, Yuan, Lei, additional, Gao, Hong-wei, additional, Peng, Qin-jun, additional, Chen, Hong-bin, additional, Feng, Lu, additional, Jin, Kai, additional, Wei, Kai, additional, Cui, Da-fu, additional, Xue, Sui-jian, additional, Zhang, Yu-dong, additional, and Xu, Zu-yan, additional

Published
2016
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15. Sub-pm linewidth nanosecond Nd:GYSGG laser at 13366 nm

Author

Li, Hui, primary, Wang, Zhi-min, additional, Zhang, Feng-feng, additional, Wang, Ming-qiang, additional, Li, Jia-jia, additional, Mao, Yu-lin, additional, Yuan, Lei, additional, Zong, Nan, additional, Zhang, Shen-jin, additional, Yang, Feng, additional, Bo, Yong, additional, Gao, Chun-qing, additional, Cui, Da-fu, additional, Peng, Qin-jun, additional, and Xu, Zu-yan, additional

Published
2015
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16. Comparison of laser induced thermal fracture between polycrystalline ceramic and crystal Nd:YAG

Author

Shen, Yu, primary, Liu, Wen-bin, additional, Zong, Nan, additional, Li, Jiang, additional, Bo, Yong, additional, Feng, Xi-qi, additional, Li, Fang-qin, additional, Pan, Yu-bai, additional, Guo, Ya-ding, additional, Wang, Peng-yuan, additional, Tu, Wei, additional, Peng, Qin-jun, additional, Zhang, Jing-yuan, additional, Lei, Wenqiang, additional, Cui, Da-fu, additional, and Xu, Zu-yan, additional

Published
2014
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17. High-power ultraviolet 278 nm laser from fourth-harmonic generation of a Nd:YAG laser in CsB_3O_5

Author

Wang, Zhichao, primary, Yang, Feng, additional, Zhang, Guochun, additional, Bo, Yong, additional, Liu, Shanshan, additional, Xie, Shiyong, additional, Xu, Yiting, additional, Zong, Nan, additional, Li, Fangqin, additional, Liu, Biaolong, additional, Xu, Jialin, additional, Peng, Qinjun, additional, Zhang, Jingyuan, additional, Cui, Dafu, additional, Wu, Yicheng, additional, and Xu, Zuyan, additional

Published
2012
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20. Excellent performance of a cryogenic Nd:YAlO 3 laser with low wavefront distortion based on zero thermal expansion.

Author

Song YJ, Xu YZ, Meng S, Jiang XX, Shao CF, Song ZX, Zong N, Wang ZM, Bo Y, Wang XJ, Lin ZS, and Peng QJ

Abstract

High-power solid-state lasers with good beam quality are attracting great attention on account of their important applications in industry and military. However, the thermal effects generated in the laser host materials seriously limit power scaling and degrade the beam quality. Thermal lensing and thermally induced wavefront deformation are the main causes of the beam quality deterioration. Here we investigate the performance of a zero thermal expansion (ZTE) solid-state laser gain material. In a proof-of-principle experiment, an ${a}$-cut rod ${\rm Nd}\!:\!{{\rm YAlO}_3}$ (Nd:YAP) perovskite crystal is chosen to be the gain medium for ZTE around 180 K. The laser performance spanning the temperature range from 80 to 290 K is studied. The maximum output power and minimum threshold pump power were obtained at a temperature of 180 K. Moreover, the measured thermal focal power and peak-to-valley value of the wavefront distortion also reach a minimum at this temperature, an additional benefit from the crystal's ZTE coefficient. We envisage that these results will open a new route towards the development of high-power and high-beam-quality lasers through the use of ZTE gain materials.

Published
2021
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