We present an analytical phase expression for an Offner triplet telescope stretcher based on ray tracing and apply it to analyze a chirped-pulse-amplification (CPA) system that includes an Offner stretcher. The results of our calculations show that the aberration caused by an off-center grating arrangement of an Offner stretcher can be used to cancel out the material dispersion of the CPA system. The optimization of the grating position provides a flat and broadband phase window for the CPA system, which leads to high-fidelity recompressed pulses.
© 2002 Optical Society of America
(080.1010) Geometric optics : Aberrations (global)
(140.3280) Lasers and laser optics : Laser amplifiers
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5520) Ultrafast optics : Pulse compression
Jie Jiang, Zhigang Zhang, and Toshifumi Hasama, "Evaluation of chirped-pulse-amplification systems with Offner triplet telescope stretchers," J. Opt. Soc. Am. B 19, 678-683 (2002)