Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (3): 139-142.doi: 10.13190/jbupt.201003.139.gengr

• Reports • Previous Articles    

Effect of Initial TOD on the Gain Characters of  Pulses Propagating Through a Fiber Amplifier

  

  • Online:2010-06-28 Published:2010-06-28
  • Contact: Rui Geng E-mail:lisaruirui@163.com;

Abstract:

The effect of the third order dispersion (TOD) in ultrashort pulses on power gain characters of them after propagating through a fiber amplifier in a chirped pulse amplification (CPA) system is investigated numerically. The pulse amplification process is described by nonlinear timedependent radiation transfer equations. Simulations show thatwhen the energy of the input pulse is identical, the peak power gain for the pulse without TOD is smaller than that with positive TOD, but larger than that with negative TOD. And the difference between the gain values increases with the initial pulse energy. 

Key words:

utrashort pulse, Ybmso-bidi-font-family: 宋体">doped fiber amplifier, third order dispersion, peak power gain