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Complete analog control of the carrier-envelope-phase of a high-power laser amplifier (Articolo in rivista)

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Complete analog control of the carrier-envelope-phase of a high-power laser amplifier (Articolo in rivista) (literal)

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Alternative label

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. (2013)
Complete analog control of the carrier-envelope-phase of a high-power laser amplifier
in Optics express; Optical Society of America, Washington (Stati Uniti d'America)
(literal)

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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. (literal)

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Titolo

Complete analog control of the carrier-envelope-phase of a high-power laser amplifier (literal)

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. (C) 2013 Optical Society of America (literal)

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