Open AccessThe solution of phase-mismatched Fokker-Planck equation and its application in the QPM device
Author(s) -
Zhao Chao-Ying,
Wei Tan
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.2723
Subject(s) - fokker–planck equation , physics , parametric statistics , phase (matter) , langevin equation , statistical physics , quantum mechanics , mathematics , partial differential equation , statistics
A new analytical solution for the phase_mismatched Fokker_Planck equation of deg enerate parametric amplification, and its application in evaluation of the ampli tude quantum fluctuation after passing through the quasi_phase_matching(QPM) dev ice is presented. The calculated results for QPM device, agree with that of the Langevin equation in the case of no loss k=0, and give a general solution fo r k≠0, from which we can derive the influence of squeezing on the loss coef ficient k.