Monolithically Integrated Coupled-Laser All-Optical Switching and Routing Elements and Circuits

Abstract

Previous work on monolithically integrated coupled-laser all-optical switching elements and circuits showed that the threshold current for the in-plane lasers fabricated from wafers designed for vertical cavity surface emitting lasers (VCSEL) were too high to permit long-term room temperature continuous wave (cw) operation. Results on experiments aimed at reducing the threshold current for the coupled in-plane lasers are reported. Two approaches were evaluated: oxidation and lattice intermixing through zinc-diffusion. No definite reduction of the threshold current for the in-plane lasers was observed, even though oxidation did lead to marked improvement in the operation characteristics of the coupled VCSELs. Emphasis of current work is on determining the switching speed of such coupled-laser switching elements and circuits.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1999
Accession Number
ADA360506

Entities

People

  • C. L. Tang
  • F. Robert

Organizations

  • Cornell University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Current Density
  • Diffusion
  • Electron Microscopes
  • Elements
  • Ion Implantation
  • Lasers
  • Materials
  • Military Research
  • Optical Switching
  • Oxidation
  • Scanning Electron Microscopes
  • Semiconductor Lasers
  • Semiconductors
  • Surface Emitting Lasers
  • Switching

Fields of Study

  • Materials science

Readers

  • Electrochemical Surface Science
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy