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A single-shot third-order autocorrelator for pulse contrast and pulse shape measurements

Published online by Cambridge University Press:  18 January 2002

J. COLLIER ,
C. HERNANDEZ-GOMEZ ,
R. ALLOTT ,
C. DANSON  and
A. HALL
J. COLLIER
Affiliation:
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, U.K.
C. HERNANDEZ-GOMEZ
Affiliation:
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, U.K.
R. ALLOTT
Affiliation:
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, U.K.
C. DANSON
Affiliation:
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, U.K.
A. HALL
Affiliation:
Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, U.K.
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Abstract

We present the design of a single-shot third-order autocorrelator that can be used to measure optical pulse lengths of ultrashort pulses within a fixed time window on a single-shot basis. It has a number of advantages over traditional second-order autocorrelation devices, namely a more direct and accurate measurement of pulse shape, the ability to differentiate temporal activity ahead and behind the pulse, and an increased dynamic range. The design is linear and is, in principle, no more difficult to construct and operate than a second-order autocorrelator.

Type
Research Article
Information
Laser and Particle Beams , Volume 19 , Issue 2 , April 2001 , pp. 231 - 235
Copyright
© 2001 Cambridge University Press

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