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Complete analog control of the carrier-envelope-phase of a high-power laser amplifier.

Authors
  • Feng, C
  • Hergott, J-F
  • Paul, P-M
  • Chen, X
  • Tcherbakoff, O
  • Comte, M
  • Gobert, O
  • Reduzzi, M
  • Calegari, F
  • Manzoni, C
  • Nisoli, M
  • Sansone, G
Type
Published Article
Journal
Optics Express
Publisher
The Optical Society
Publication Date
Oct 21, 2013
Volume
21
Issue
21
Pages
25248–25256
Identifiers
DOI: 10.1364/OE.21.025248
PMID: 24150365
Source
Medline
License
Unknown

Abstract

In this work we demonstrate the development of a complete analog feedback loop for the control of the carrier-envelope phase (CEP) of a high-average power (20 W) laser operating at 10 kHz repetition rate. The proposed method combines a detection scheme working on a single-shot basis at the full-repetition-rate of the laser system with a fast actuator based either on an acousto-optic or on an electro-optic crystal. The feedback loop is used to correct the CEP fluctuations introduced by the amplification process demonstrating a CEP residual noise of 320 mrad measured on a single-shot basis. The comparison with a feedback loop operating at a lower sampling rate indicates an improvement up to 45% in the residual noise. The measurement of the CEP drift for different integration times clearly evidences the importance of the single-shot characterization of the residual CEP drift. The demonstrated scheme could be efficiently applied for systems approaching the 100 kHz repetition rate regime.

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