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Acta Physica Sinica (Overseas Edition), 1996, Vol. 5(10): 769-780    DOI: 10.1088/1004-423X/5/10/007
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GROUP-VELOCITY DISPERSION IN CHIRPED-PULSE AMPLIFIER

SHEN YU-ZHEN (沈宇震), XING QI-RONG (邢岐荣), SHI JI-YING (石季英), WANG QING-YUE (王清月)
Department of Precision Instrument, Tianjin University, Tianjin 300072, China
Abstract  By using the pulse propagation equation in the nonlinear dispersive medium, the effects of second- and third-order group-velocity dispersion on pulse evolution in the stretching, amplification and compressing are studied when chirped pulse am-plification is applied to the pulses of a width <30fs, and the optimum dispersion-compensated conditions among the stretcher, amplifier and compressor are deter-mined. From the standpoint of dispersion compensation and control and the com-pressor adjustment, it is proposed that low-groove-density gratings (≤800 line/mm) are the better choices for stretching and compressing the pulses of a width <30fs in chirped-pulse amplification. It is also shown that, with a proper adjustment of the compressor incident angle and grating separation, an exact null in both second- and third-order dispersions can be achieved without any additional dispersion- compensated elements.
Received:  20 December 1995      Accepted manuscript online: 
PACS:  42.65.Yj (Optical parametric oscillators and amplifiers)  
  42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)  

Cite this article: 

SHEN YU-ZHEN (沈宇震), XING QI-RONG (邢岐荣), SHI JI-YING (石季英), WANG QING-YUE (王清月) GROUP-VELOCITY DISPERSION IN CHIRPED-PULSE AMPLIFIER 1996 Acta Physica Sinica (Overseas Edition) 5 769

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