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Two-dimensional liquid crystal laser array

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    Rights statement: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://dx.doi.org/10.1364/OL.33.000515]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-33-5-515
Original languageEnglish
Pages (from-to)515-517
Number of pages3
JournalOptics Letters
Volume33
Issue number5
DOIs
Publication statusPublished - 1 Mar 2008

Abstract

A two-dimensional liquid crystal (LC) laser array has been demonstrated by photopumping a single LC sample using a lenslet array consisting of plano-convex microlenses. A 5 x 5 array of LC lasers (displaying evidence of mutual coherence) spaced by 1 mm inactive regions has been generated, which could be combined to yield a single monomode output and allows an almost 50-fold increase in energy density in comparison to a single-focus LC cavity. Furthermore, we have demonstrated how the individual and recombined emission spectra vary with different sample topologies and how polydomain samples can be used to generate a multiwavelength laser emission.

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