Suppression of spatial hole burning in a solid-state laser with the degenerate resonator configuration | Zendy

Po-Tse Tai | Zendy; Wen–Feng Hsieh | Zendy; Hsiao-Hua Wu | Zendy

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Suppression of spatial hole burning in a solid-state laser with the degenerate resonator configuration

Author(s) -

Po-Tse Tai,

Wen–Feng Hsieh,

Hsiao-Hua Wu

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.001679

Subject(s) - optics , resonator , laser , optical cavity , materials science , beam (structure) , degenerate energy levels , solid state laser , laser beam quality , spatial filter , physics , laser beams , quantum mechanics

Under degenerate resonator configuration and tightly focused pump beam in a linear-cavity solid-state laser, the spatial hole-burning effect can be suppressed. This laser can attain very high intensity in the gain medium due to shrinkage of its beam waist to match the pump beam and therefore most of its gain is depleted even by a standing wave. This was demonstrated by a simulation with spatial dependent rate equations and experiment results of a plano-concave Nd:YVO4 laser. The suppression effect was observed up to 20 times the pump threshold.

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