Conical refraction Nd:KGd(WO_4)_2 laser | Zendy

Amin Abdolvand | Zendy; Keith G. Wilcox | Zendy; Todor K. Kalkandjiev | Zendy; Edik U. Rafailov | Zendy

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Conical refraction Nd:KGd(WO_4)_2 laser

Author(s) -

Amin Abdolvand,

Keith G. Wilcox,

Todor K. Kalkandjiev,

Edik U. Rafailov

Publication year - 2010

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.18.002753

Subject(s) - optics , conical surface , refraction , laser , materials science , laser beam quality , crystal (programming language) , light beam , optical axis , resonator , beam (structure) , physics , laser beams , lens (geology) , computer science , composite material , programming language

In 1832 Hamilton predicted conical refraction, concluding that if a beam propagates along an optic axis of a biaxial crystal, a hollow cone of light will emerge. Nearly two centuries on, cascade conical refraction involving multiple crystals has not been investigated. We empirically investigate a unique two-crystal configuration, and use this to demonstrate an ultra-efficient conical refraction Nd:KGd(WO(4))(2) laser providing multi-watt output with excellent beam quality independent of resonator design with a slope efficiency close to the theoretical maximum, offering a new route for power and brightness-scaling in solid-state bulk lasers.

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