Stretcher-compressor assembly having a single grating

Details Stretcher-compressor assembly having a single grating Stretcher-compressor assembly having a single grating

1998-05-14

2000-06-27

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Specified cavity component

H01S 308

Patent

active

060815434

ABSTRACT:
The invention provides a compact, combined stretcher-compressor assembly which utilizes a single grating element. The single grating element is preferably a holographic transmission grating element. The grating element has first and second surfaces which are opposed major surfaces with a thickness between the surfaces. The grating pattern is patterned in or on the grating element. The grating element is arranged in the assembly to receive a beam for stretching laser pulses in a stretcher beam path, and in the same arrangement, to receive a beam for compressing laser beam pulses in a compressor beam path. The stretcher and compressor beam paths pass through the single grating element. Respective reflecting means are arranged to provide a desired number of passes through the grating element by the stretcher beam path, and through the grating element by the compressor beam path.

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C. Horvath, A. Braun, H. Liu, T. Juhasz, and G. Mourou, "Compact directly diode-pumped femtosecond Nd:glass chirped-pulse-amplification laser system", Optics Letters, vol. 22, No. 23, Dec. 1, 1997, pps. 1790-92.
W.J. Tomlinson and W.H. Knox, "Limits of fiber-grating optical pulse compression", Journal Optical Society of America, vol. 4, Sep. 1987, pps. 1404-11.

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