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Long-term carrier-envelope phase stability from a grating-based, chirped pulse amplifier.

Etienne Gagnon1, Isabell Thomann, Ariel Paul

  • 1Department of Physics and JILA, and NSF Engineering Research Center in EUV Science and Technology, University of Colorado and NIST, Boulder, 80309-0440, USA.

Optics Letters
|May 27, 2006
PubMed
Summary

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We developed a novel chirped pulse laser amplifier with enhanced carrier-envelope phase (CEP) stability. This system offers improved long-term stability and accurate noise measurements for advanced laser applications.

Area of Science:

  • * Laser physics and optics
  • * Ultrafast science and technology

Background:

  • * Maintaining stable carrier-envelope phase (CEP) is crucial for ultrafast laser systems.
  • * Existing laser amplifiers often struggle with long-term CEP stability.
  • * Accurate measurement of CEP noise is essential for reliable system performance.

Purpose of the Study:

  • * To demonstrate a chirped pulse laser amplifier with intrinsically improved long-term CEP stability.
  • * To present a novel method for single-shot CEP noise measurement.
  • * To provide a rigorously accurate upper limit on CEP noise.

Main Methods:

  • * Employed a grating-based stretcher and compressor.
  • * Utilized a cryogenically cooled laser amplifier.
  • * Performed single-shot carrier envelope phase noise measurements.

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Main Results:

  • * Achieved greatly improved intrinsic long-term CEP stability compared to other amplifiers.
  • * Demonstrated single-shot CEP noise measurements that avoid underestimation due to fringe averaging.
  • * Established a rigorously accurate upper limit on CEP noise.

Conclusions:

  • * The developed laser amplifier offers superior long-term CEP stability.
  • * The single-shot measurement technique provides a more accurate assessment of CEP noise.
  • * This advancement is significant for applications requiring highly stable ultrafast lasers.