Conical refraction Nd:KGd(WO4)(2) laser

Amin Abdolvand, Keith G. Wilcox, Todor K. Kalkandjiev, Edik U. Rafailov

    Research output: Contribution to journalArticlepeer-review

    92 Citations (Scopus)


    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(WO4)(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. (C) 2010 Optical Society of America

    Original languageEnglish
    Pages (from-to)2753-2759
    Number of pages7
    JournalOptics Express
    Issue number3
    Publication statusPublished - 1 Feb 2010




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