title: Demonstration of enhanced side-mode suppression in metal-filled photonic crystal vertical cavity lasers.
abstract: 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.
authors.affiliation: Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Micro and Nanotechnology Laboratory, 208 North Wright Street, Urbana, Illinois 61801, USA.
authors.forename: Benjamin G
authors.initials: BG
authors.lastname: Griffin
authors.forename: Amir
authors.initials: A
authors.lastname: Arbabi
authors.forename: Meng
authors.initials: M
authors.lastname: Peun Tan
authors.forename: Ansas M
authors.initials: AM
authors.lastname: Kasten
authors.forename: Kent D
authors.initials: KD
authors.lastname: Choquette
authors.forename: Lynford L
authors.initials: LL
authors.lastname: Goddard