Imperial College London
EMERITUS PROFESSOR GEOFF NEW

EMERITUS PROFESSOR GEOFF NEW

Faculty of Natural Sciences, Department of Physics

Senior Research Investigator
 
 
 
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Contact

 

+44 (0)20 7594 7641g.new Website CV

 
 
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Location

 

6M07Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ritsataki:1996,
author = {Ritsataki, A and French, PMW and New, GHC},
journal = {Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS},
title = {Numerical model of Kerr-lens mode-locking},
year = {1996}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In recent years, there has been a great deal of interest in Kerr-lens mode-locking (KLM) in view of its implications for femtosecond pulse generation in solid-state lasers. Simple criteria for determining the cavity parameters that maximize the nonlinear amplitude modulation and promote self-starting have been sought, with attention centered on the parameter δ defined as the relative change of beam size w with power P at one of the cavity mirrors (δ = ((1/w)∂w/∂P)P→0). Optimal KLM operation occurs when δ exhibits its most negative value. The aim of this work has been to develop a general numerical model to calculate values of δ in both the tangential and sagittal planes, taking into consideration astigmatism introduced by off-axis spherical mirrors and Brewster-angled surfaces, nonlinear coupling of the beam sizes between the two planes of polarization, self-focusing and gain-guiding. The way in which contour plots of δ(x, z) change with the introduction of each of the above effects into the model and the effect on the optimum region for KLM have been studied.
AU  - Ritsataki,A
AU  - French,PMW
AU  - New,GHC
PY  - 1996///
SN  - 1092-8081
TI  - Numerical model of Kerr-lens mode-locking
T2  - Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
ER  -
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