Measurement of thermal lensing in a CW BaWO_4 intracavity Raman laser | Zendy

Gerald M. Bonner | Zendy; Helen M. Pask | Zendy; Andrew Lee | Zendy; Alan J. Kemp | Zendy; Jing Wang | Zendy; Huaijin Zhang | Zendy; Takashige Omatsu | Zendy

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Measurement of thermal lensing in a CW BaWO_4 intracavity Raman laser

Author(s) -

Gerald M. Bonner,

Helen M. Pask,

Andrew Lee,

Alan J. Kemp,

Jing Wang,

Huaijin Zhang,

Takashige Omatsu

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.009810

Subject(s) - optics , materials science , lens (geology) , laser , raman scattering , raman spectroscopy , optical axis , interferometry , radius , physics , computer security , computer science

The thermal lens induced in an a-cut BaWO(4) crystal by stimulated Raman scattering is measured using lateral shearing interferometry. The strength of the lens is proportional to the Stokes output power. For light polarized parallel to the a-axis, and a Stokes mode radius of 120 μm, the lens is negative and highly astigmatic: -0.8 D W(-1) in the plane parallel to the a-axis and -7.7 D W(-1) in the plane parallel to the c-axis. The implications of this thermal lens for Raman laser design are discussed.

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