Eur. Phys. J. D 47, 309-312 (2008)
https://doi.org/10.1140/epjd/e2008-00007-5

Compact high gain double-pass optical parametric chirped pulse amplifier

¹ State Key Laboratory of Transient Optics and Photonic Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710068, P.R. China
² School of technique physics, Xidian University, Xi'an, 710071, P.R. China

Corresponding author: ^a lxl8201@sohu.com

Received: 16 September 2007
Revised: 20 November 2007
Published online: 16 January 2008

Abstract

A novel double-pass noncollinear optical parametric chirped pulse amplifier based on an Yb³⁺-doped passively mode-locked fiber laser has been demonstrated in this paper. The signal was double-pass amplified in a single nonlinear crystal by a long pump pulse, and the signal and pump pulses of each pass were completely phase matched in the plane of the maximum effective nonlinearity. Net saturated gain of 2×10⁶ was achieved and the superfluorescence was suppressed by increasing the overlap time between the signal and pump pulses.