Pengfei Sha
Beijing Institute of Technology
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Pengfei Sha.
Laser Physics | 2009
Ying Yan; Hengli Zhang; Xinhong Yu; Pengfei Sha; Yang Liu; J. Li; Jianguo Xin
A 32.1 W laser-diode-stack pumped acoustic-optic Q-switched Nd:YVO4 slab laser with hybrid resonator at 1064 nm was demonstrated with the pumping power of 112 W and repetition rate of 40 kHz, the pulse duration was 32.47 ns. The slope efficiency and optical-to-optical efficiency were 37 and 28.7%, respectively. At the repetition rate of 20 kHz and pumping power of 90 W, the average output power and pulse duration were 20.4 W and 20.43 ns, respectively. With the pumping power of 112 W, the beam quality M2 factors in CW operation were measured to be 1.3 in stable direction and 1.6 in unstable direction.
Laser Physics | 2011
Li Cui; Hengli Zhang; Liu Xu; Jing Li; Ying Yan; Pengfei Sha; Liping Fang; H. J. Zhang; J. L. He; Jianguo Xin
Abstract43.6 W near-diffraction-limited continuous-wave laser beam at 1342 nm in 880 nm laser-diode partially end-pumped Nd:YVO4 slab laser is presented. The slope efficiency and optical-to-optical efficiency with respect to absorbed pumping power were 45.4% and 35.9%, respectively. At output power of 34.5 W, the M2 factors in unstable and stable directions were 1.3 and 1.2, respectively.
Laser Physics | 2010
Ying Yan; Hengli Zhang; Pengfei Sha; Li Cui; R. N. Li; Xin Lin; H. J. Zhang; J. L. He; Jianguo Xin
An 83 W, near-diffraction-limited LD end-pumped Nd:GdVO4 slab laser with hybrid resonator was presented with the pumping power of 238 W, the slope efficiency and optical-to-optical conversion efficiency were 39.4 and 34.9%, respectively. At the output power of 70 W, beam quality M2 factors were 1.2 in stable direction and 1.3 in unstable direction.
Optics Letters | 2010
Pengfei Sha; Jianguo Xin; Liping Fang; Zhengfan Liu; Ying Zhou; Hengli Zhang; Songlin Yu; Jianguo Wen
We utilize a sliced slab waveguide structure to produce a gain waveguide array. With this array, an in-phase locked single-mode frequency output with a single-peak intensity distribution without sidelobes and a highly spatially suppressed far-field distribution has been obtained.
Archive | 2011
Hengli Zhang; Ying Yan; Pengfei Sha; Jing Li; Xin Lin; Jianguo Xin
Optics Communications | 2009
Ying Yan; Hengli Zhang; Yang Liu; Jing Li; Pengfei Sha; Jingliang He; Huaijin Zhang; Jianguo Xin
Archive | 2009
Hengli Zhang; Ying Yan; Pengfei Sha; Jing Li; Xin Lin; Jianguo Xin
Archive | 2008
Hengli Zhang; Ying Yan; Yanhua Wang; Yang Liu; Pengfei Sha; Jichuan Xing; Jianguo Xin
Archive | 2008
Hengli Zhang; Ying Yan; Yanhua Wang; Yang Liu; Pengfei Sha; Jichuan Xing; Jianguo Xin
Optics Communications | 2011
Li Cui; Hengli Zhang; Jing Li; Abdul Raof; Ying Yan; Liu Xu; Pengfei Sha; Liping Fang; Huaijin Zhang; Jingliang He; Jianguo Xin