Dynamic gain aperture modelocking in picosecond regime based on cascaded second-order nonlinearity

The operation of a cascaded second-order mode-locked Nd:YVO laser has been investigated considering it as a soft-aperture Kerr lens type and using complex beam parameters. A self consistent complex beam propagation method is used to incorporate the effect of cascaded Kerr nonlinearity on radially va...

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Bibliographic Details
Published in:Optics express 2016-07, Vol.24 (14), p.15274-15288
Main Authors: Mondal, Shyamal, Mukherjee, Shouvik, Singh, Satya Pratap, Rand, Stephen C, Bhattacharya, Sayantan, Das, Amit C, Datta, Prasanta Kumar
Format: Article
Language:English
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Summary:The operation of a cascaded second-order mode-locked Nd:YVO laser has been investigated considering it as a soft-aperture Kerr lens type and using complex beam parameters. A self consistent complex beam propagation method is used to incorporate the effect of cascaded Kerr nonlinearity on radially varying gain aperturing. The analysis deduces a stable pulsewidth of ~9.5 ps which agrees well with the experimental value of 10.3 ps.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.24.015274