Nonlinear dynamics of ultrashort pulses in solid-state lasers mode-locked by self-focusing

Калашников, В. Л.; Poloiko, I G; Mikhailov, V. P.

doi:10.1070/qe1998v028n04abeh001225

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2008

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“…To validate the extended controllability, in this paper, we demonstrate a soft-aperture KLM Ti:sapphire laser with an Yb:KYW crystal in the cavity. The Yb:KYW crystal provides a much larger nonlinear refraction-index (8.7×10 -16 cm 2 /W) [13] than Ti:sapphire. Varying the position of Yb:KYW nearby the confocal focus to change the intracavity Kerr-effects, we can control the pump threshold to start mode-locking and stable regions to maintain modelocking.…”

Section: Introductionmentioning

confidence: 99%

Kerr-lens mode-locked Ti:sapphire laser with an additional intracavity nonlinear medium

Han¹,

Zeng²

2008

Opt. Express

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We demonstrate a Kerr-lens mode-locked Ti:sapphire laser with an additional Yb(3+) doped Potassium Yttrium Tungstate crystal (Yb:KYW) in the laser cavity, where not only the pump threshold to start mode-locking but also the stable regions to maintain mode-locking can be well-controlled by varying the position of Yb:KYW nearby the confocal focus to change the intracavity Kerr-effects. The pump threshold is reduced down to 800 mW to start the mode-locking operation, which is about 27% less than that for a Ti:sapphire laser without an additional Yb:KYW.

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Section: Introductionmentioning

confidence: 99%