I. V. Zakharov, A. G. Kuznetsov, E. V. Podivilov, S. A. Babin, “Calculation and experimental verification of a collimator with a Kerr lens for fibre laser mode locking”, Kvantovaya Elektronika, 2017, Volume 47, Number 10,Pages <nobr>882

Lasers

Calculation and experimental verification of a collimator with a Kerr lens for fibre laser mode locking

I. V. Zakharov^ab, A. G. Kuznetsov^a, E. V. Podivilov^ab, S. A. Babin^ab

^a Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
^b Novosibirsk State University

Abstract: We present the calculation and experimental verification of the operation of a collimator coupling a light beam into an optical fibre with an As₂S₃ nonlinear plate. It is shown that a Kerr lens formed in the plate with an increase in the peak pulse power leads to an increase in the output coupling ratio by about 15%, which can be used for the passive mode locking of a fibre laser.

Keywords: Kerr lens, fibre laser, ultrashort pulses, mode locking.

Received: 07.04.2017
Revised: 25.07.2017