Demonstration of enhanced side-mode suppression in metal-filled photonic crystal vertical cavity lasers

Previously reported simulations have suggested that depositing thin layers of metal over the surface of a single-mode, etched air hole photonic crystal (PhC) vertical-cavity surface-emitting laser (VCSEL) could potentially improve the laser's side-mode suppression ratio by introducing additiona...

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Bibliographic Details
Published inOptics letters Vol. 38; no. 11; p. 1936
Main Authors Griffin, Benjamin G, Arbabi, Amir, Peun Tan, Meng, Kasten, Ansas M, Choquette, Kent D, Goddard, Lynford L
Format Journal Article
LanguageEnglish
Published United States 01.06.2013
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Summary:Previously reported simulations have suggested that depositing thin layers of metal over the surface of a single-mode, etched air hole photonic crystal (PhC) vertical-cavity surface-emitting laser (VCSEL) could potentially improve the laser's side-mode suppression ratio by introducing additional losses to the higher-order modes. This work demonstrates the concept by presenting the results of a 30 nm thin film of Cr deposited on the surface of an implant-confined PhC VCSEL. Both experimental measurements and simulation results are in agreement showing that the single-mode operation is improved at the same injection current ratio relative to threshold.
ISSN:1539-4794
DOI:10.1364/OL.38.001936