Work

Comprehensive model of 1550 nm MEMS-tunable high-contrast-grating VCSELs

Year: 2014

Type: article

Abstract: A comprehensive theoretical model for the long-wavelength micro-electro-mechanical-tunable high-contrast-grating vertical-cavity surface-emitting lasers is presented. Our band structure model calculates the optical gain and spontaneous emission of the InGaAlAs quantum well active region. The grating reflectivity and the cavity resonance condition are investigated through optical modeling. Correlating the results with the electrostatic model for the micro-electro-mechanical system, we accurately predict the measurements on the voltage-contolled lasing wavelength. Furthermore, our calculated temperature-dependent wavelength-tunable light output vs. current (L-I) curves show excellent agreement with experiment.

Source: Optics Express

DOI: 10.1364/oe.22.008541

Authors: Pengfei Qiao, Guan-Lin Su, Yi Rao, Ming C. Wu, Connie J. Chang-Hasnain, Shun Lien Chuang

Institutions: University of Illinois Urbana-Champaign, University of California, Berkeley

Language: English

Topic: Semiconductor Lasers and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Defense Advanced Research Projects Agency, University of Illinois at Urbana-Champaign