A single-directional microcavity laser with microloop mirrors and widened medium realized with quantum-well intermixing

Y. Huang*, Y. Xiao, G. Xu, S. Chang, Y. G. Zhao, R. Wang, B. S. Ooi, S. T. Ho

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

We describe a linear-geometry microcavity laser with microloops as end reflectors to achieve single-directional output. Finite-difference time-domain simulation is used to optimize the microloop mirror (MLM) performance and simulate the laser operation. We show that a single-directional microlaser with cavity length as small as 25 μm can be realized. A method to obtain higher output power from the microlaser with widened gain medium (WGM) is discussed. An initial fabrication of the MLM-WGM laser with transparent MLM formed by quantum-well intermixing is presented. A low-lasing threshold of ∼0.4 mA is achieved.

Original languageEnglish (US)
Pages (from-to)130-132
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number1
DOIs
StatePublished - 2006

Keywords

  • Finite-difference time-domain (FDTD) methods
  • Laser resonators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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