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

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

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to) 2753-2759
JournalOptics Express
Issue number3
Publication statusPublished - 2010


Dive into the research topics of 'Conical refraction Nd:KGd(WO4)(2) laser'. Together they form a unique fingerprint.

Cite this