Femtosecond laser beam correction by means of adaptive optics

Closed-loop adaptive optical system based on phase-conjugate algorithm and including deformable bimorph mirror and Shack-Hartmann wavefront sensor was developed and studied. The examples of application of this system for wavefront correction and improvement of the beam focusability in the femtosecon...

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Bibliographic Details
Main Authors: Samarkin, V., Alexandrov, A., Zavalova, V., Kudryashov, A., Rukosuev, A., Sheldakova, Y.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive optics
Adaptive systems
deformable mirror
Laser beams
Laser theory
Mirrors
Optical pulses
Optical sensors
Power lasers
sapphire laser
Sensor systems
Shack-Hartmann sensor
titanium
Ultrafast optics
wavefront correction
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Summary:Closed-loop adaptive optical system based on phase-conjugate algorithm and including deformable bimorph mirror and Shack-Hartmann wavefront sensor was developed and studied. The examples of application of this system for wavefront correction and improvement of the beam focusability in the femtosecond pulse lasers produced for fundamental research in the field of high energy physics are presented. In several laser systems based on active elements Ti:Al 2 O 3 with the output pulse energy up to 5 J and the pulse power up to 100 TW a Strehl ratio was increased from 0.1 to 0.8 by means of adaptive optics.
ISSN:2160-1518
2160-1534
DOI:10.1109/CAOL.2008.4671965