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Downchirped pulse amplification

  • US 7,072,101 B2
  • Filed: 05/10/2003
  • Issued: 07/04/2006
  • Est. Priority Date: 05/10/2002
  • Status: Active Grant
First Claim
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1. A pulse amplifier for generating high-power ultra-short pulses from moderate-power ultra-short pulses comprising:

  • a subsystem configured for applying negative group velocity dispersion to the moderate-power ultra-short pulses to generate moderate power, longer-duration pulses having negative chirp;

    an amplifier configured for amplifying the moderate power, long pulses to generate high power long pulses; and

    a compressor configured for de-chirping the moderate power, long pulses by applying positive group velocity dispersion to generate ultra-short, high power pulses;

    wherein the negative dispersion subsystem is configured to apply sufficient negative dispersion to result in pulses having negative chirp after the amplifier amplifies the pulse; and

    wherein the negative dispersion subsystem is configured to result in sufficient pulse stretching to avoid nonlinear distortion within the amplifier or damage to the amplifier.

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