Phase locking in a Nd:YVO4 waveguide laser array using Talbot cavity

Kenichi Hirosawa, Seiichi Kittaka, Yu Oishi, Fumihiko Kannari, Takayuki Yanagisawa

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We demonstrated phase-locking in a laser-diode-array-pumped Nd:YVO4 laser array (15 emitters) using a Talbot cavity. The Nd:YVO4 slab crystal was coated by dielectric material for claddings and formed a planar waveguide for the vertical mode. To stabilize the horizontal array mode, periodical thermal lenses were generated by controlling the heat flow. The phase-locked waveguide array generated 1.65-W output power, while 2.02 W was available in a standard cavity. Two-peak supermode was demonstrated with the Talbot cavity and was converted to a single peak with a spatial light modulator. We also experimentally and numerically analyzed the characteristics of Talbot phase-locking.

Original languageEnglish
Pages (from-to)24952-24961
Number of pages10
JournalOptics Express
Volume21
Issue number21
DOIs
Publication statusPublished - 2013 Oct 21

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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