High-Speed Nonlinear Switching Mechanisms and Devices for Multi-Gigabit Data Processing

Abstract

A high contract, low intensity GaAlInAs/AlInAs multiple quantum well asymmetric Fabry-Perot reflection modulator for operation at 1.3 um has been demonstrated. The reflection modulator takes advantage of the large absorptive and refractive nonlinearities associated with saturating the heavy-hole exciton resonance. We achieve an on/off contrast ratio in excess of 1000:1 (30 dB) and an insertion loss of 2.2 dB at a pump intensity of 30 kW/cm2, corresponding to a carrier density of 4.5 x 1017 cm-3. The modulator was demonstrated to have a large operating bandwidth achieving an on/off contrast ratio of greater than 100:1 over a 5 nm optical band. The operating speed of the modulator was measured and found to approach 1 GHz.... GaAlInAs/AlInAs multiple quantum well asymmetric Fabry-Perot reflection modulator.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1993
Accession Number
ADA267753

Entities

People

  • J. Stacy
  • M. Krol
  • N. Peyghambarian
  • R. Boncek
  • S. Johns

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Air Force
  • Coefficients
  • Contrast
  • Data Processing
  • Engineers
  • Insertion Loss
  • Intensity
  • Modulation
  • Modulators
  • Optical Modulators
  • Photonics
  • Quantum Wells
  • Reflectance
  • Reflection
  • Switching

Fields of Study

  • Materials science

Readers

  • Computer Networking
  • Electronics Engineering
  • Spectroscopy.

Technology Areas

  • Microelectronics
  • Quantum Computing