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Featured researches published by Yujie Peng.


IEEE Journal of Selected Topics in Quantum Electronics | 2018

Suppressing Temporal Pedestal in Nd:glass Laser Systems by Avoiding Far-Field Spectral Phase Noise

Xiaoming Lu; Xinliang Wang; Yuxin Leng; Xiaoyang Guo; Yujie Peng; Yanyan Li; Yi Xu; Rongjie Xu; Xinyuan Qi

The impact of spectral phase noise on the temporal pulse contrast is explored experimentally by using two zero-dispersion stretchers (Offner stretcher and two-lens stretcher). The results show clearly that a long temporal pedestal appears when there exists far-field spectral phase noise, which greatly degrades the pulse contrast. In our proof-of-principle experiment, by using a two-lens stretcher, the far-field spectral phase noise is avoided and the noise pedestal of the amplified pulse in a Nd:glass laser system is reduced, with the contrast reaching a level of 10 –11 in the 60-ps time window before the main pulse. This simple method may pave the way in a PW-level Nd:glass laser by directly using pre-cleaning techniques.


Laser Physics | 2017

Investigation of pre-pulse pumping laser for preserving temporal waveform of stimulated Raman scattering

Junchi Chen; Hongpeng Su; Yujie Peng; Xiaoyang Guo; Zhanshan Wang; Yuxin Leng

A modified polarized beam combination technique is proposed for preserving the temporal waveforms of stimulated Raman scattering. 1064 nm pre-pulse pumping lasers prior to the main pumping laser with a delay time are generated and injected into a Ba(NO3)(2) Raman medium to excite the crystal firstly. The influences of pre-pulse lasers with various energy levels on the temporal shapes of Raman lasers are investigated, and it is demonstrated that the temporal waveforms of the Raman laser are distorted once the energies of the pre-pulse are below and above the required energy for preserving the temporal shapes of Stokes radiation. It is also discovered that the temporal shape of the 1197 nm Raman laser cannot be perfectly preserved if the energy of the 1064 nm main laser is too low or the relative delay time is too large. Moreover, the optical conversion efficiency and Stokes laser energy obtained under pumping lasers with single and double intensity peaks are compared.


The 8th International Symposium on Ultrafast Phenomena and Terahertz Waves (2016), paper IT2A.34 | 2016

End Pumped All Internal Reflection Small-Sized Nd:YAG Slab Picosecond Laser Amplifier

Chen J. Chi; Yujie Peng; Hongpeng Su; Yuxin Leng

The picosecond laser based on small-sized Nd:YAG slab amplifier is proposed. The maximum power of 6.91W is generated under the absorbed pumping power of 28W, and the corresponding optical conversion efficiency is about 12.2 %.


Optics Communications | 2017

Demonstration of a diode pumped Nd,Y co-doped SrF2 crystal based, high energy chirped pulse amplification laser system

Junchi Chen; Yujie Peng; Zongxin Zhang; Hongpeng Su; Yuxin Leng; Dapeng Jiang; Fengkai Ma; Xiaobo Qian; Fei Tang; Liangbi Su


Optics Communications | 2016

A novel measurement scheme for the radial group delay of large-aperture ultra-short laser pulses

Fenxiang Wu; Yi Xu; Zhaoyang Li; Wenkai Li; Jun Lu; Cheng Wang; Yanyan Li; Yanqi Liu; Xiaoming Lu; Yujie Peng; Ding Wang; Yuxin Leng; Ruxin Li


Chinese Optics Letters | 2016

High contrast amplification at 1053 nm limited by pulse stretching-compressing process

Xiaoming Lu; Yujie Peng; Yanyan Li; Xiaoyang Guo; Yuxin Leng; Zhan Sui; Yi Xu; and Xinliang Wang


High Power Laser Science and Engineering | 2016

Generation of high-contrast, joule-level pulses based on Nd:glass chirped pulse amplification laser

Xiaoming Lu; Yujie Peng; Yanyan Li; Xinliang Wang; Xiaoyang Guo; Yi Xu; Yuxin Leng


Optics Letters | 2018

2.6 mJ/100 Hz CEP-stable near-single-cycle 4 μm laser based on OPCPA and hollow-core fiber compression

Pengfei Wang; Yanyan Li; Wenkai Li; Hongpeng Su; Beijie Shao; Shuai Li; Cheng Wang; Ding Wang; Ruirui Zhao; Yujie Peng; Yuxin Leng; Ruxin Li; Zhizhan Xu


Applied Sciences | 2017

A High-Energy, 100 Hz, Picosecond Laser for OPCPA Pumping

Hongpeng Su; Yujie Peng; Junchi Chen; Yanyan Li; Pengfei Wang; Yuxin Leng


conference on lasers and electro optics | 2018

High rep-rate, high peak power 1450 nm laser source based on optical parametric chirped pulse amplification

Pengfei Wang; Yanyan Li; Wenkai Li; Hongpeng Su; Yujie Peng; Yuxin Leng

Collaboration


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Yuxin Leng

Chinese Academy of Sciences

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Hongpeng Su

Chinese Academy of Sciences

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Yanyan Li

Chinese Academy of Sciences

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Junchi Chen

Chinese Academy of Sciences

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Pengfei Wang

Chinese Academy of Sciences

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Xiaoming Lu

Chinese Academy of Sciences

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Yi Xu

Chinese Academy of Sciences

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Wenkai Li

Chinese Academy of Sciences

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Cheng Wang

Chinese Academy of Sciences

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Ding Wang

Chinese Academy of Sciences

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