In-phase, coherent photonic crystal vertical-cavity surface-emitting laser arrays with low divergence

D. F. Siriani, K. D. Choquette

Research output: Contribution to journalArticlepeer-review

Abstract

Two-dimensional vertical-cavity surface-emitting laser (VCSEL) arrays are defined using an etched photonic crystal pattern and ion implantation. The 2×2 laser arrays are shown to operate in a single in-phase mode from threshold to maximum output power. The in-phase interference between the multiple lasers constituting the array form an angularly narrow, on-axis peak in the far field. These coherently-coupled laser arrays are of interest owing to their ease of fabrication and potential for creating low-diffraction beams with increased output power.

Original languageEnglish (US)
Pages (from-to)712-714
Number of pages3
JournalElectronics Letters
Volume46
Issue number10
DOIs
StatePublished - May 13 2010

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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