Wideband Modulation and Tuning of Semiconductor Lasers using Novel Quantum Well Structures

Abstract

This report results from a contract tasking University College London as follows: The objective of the tasking was to realize GaAs/AlGaAs tunable lasers which use the quantum-confined Stark effect (QCSE) as a tuning mechanism to produce a uniform frequency modulation (FM) response. A detailed analysis of optical frequency modulation analogue link is presented. It is shown that these enable non-linear limits on the dynamic range of long (>100km) links to be overcome. Using realistic system parameters signal to noise ratios exceeding 156 dB. Hz are predicted for 1000km links.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA341917

Entities

People

  • Alwyn Seeds
  • Xuan Huang

Organizations

  • University College London

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Analog Signals
  • Communication Systems
  • Detectors
  • Distributed Feedback Lasers
  • Electronics Industry
  • Electronics Laboratories
  • Laser Applications
  • Laser Diodes
  • Lasers
  • Modulation
  • Modulators
  • Optical Fibers
  • Quantum Cascade Lasers
  • Quantum Well Lasers
  • Quantum Wells
  • Semiconductor Lasers
  • Semiconductors

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Technical Research and Report Writing.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Quantum Computing