Polarization-Independent Optical Waveguide Switch with Parabolic Potential Quantum Well,

Abstract

In a parabolic quantum well, the shift in the optical transition energy due to the quantum confined Stark effect is independent of the carrier effective mass. This fact enables us to realize polarization-independent waveguide optical switches. An absorption-type switch with GaAs/Alo.3Ga.0.7As equivalent parabolic quantum wells is fabricated with molecular beam epitaxy. Both transverse-electric and transverse-magnetic mode fights exhibit an on/off ratio of lO dB at an applied voltage of 3.5V at 844nm wavelength. To our knowledge, this is the first polarization-independent waveguide optical switch based on the electric-field-induced effect in the semiconductor quantum well.

Document Details

Document Type
Technical Report
Publication Date
May 22, 1992
Accession Number
ADP007420

Entities

People

  • Kunio Tada
  • Shinji Nishimura
  • Takuya Ishikawa
  • Yen C. Chan

Organizations

  • University of Tokyo

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Electric Fields
  • Molecular Beam Epitaxy
  • Molecular Beams
  • Optical Waveguides
  • Polarization
  • Quantum Wells
  • Semiconductors
  • Stark Effect
  • Switches
  • Switching
  • Transitions
  • Transverse
  • Waveguide Switches
  • Waveguides

Fields of Study

  • Materials science
  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Physics and Photonics.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics
  • Quantum Computing
  • Quantum Science - Quantum Dots