Enhanced Electro-Optic Phase Shifts in Suspended Waveguides

Abstract

We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well waveguides compared to attached waveguides. The enhancement stems from an improved overlap between the optical mode and the multiple quantum well layers in thin waveguides when the semiconductor material beneath the waveguide is selectively etched. The measured voltage length product is 0.41 V-cm and the measured propagation loss is 2.3 +/- 0.7 dB/cm for the TE mode in the optical L-band.

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Document Details

Document Type
Technical Report
Publication Date
Jan 18, 2010
Accession Number
ADA518370

Entities

People

  • C. J. Richardson
  • Doewon Park
  • J. B. Khurgin
  • M. W. Pruessner
  • S. Kanakaraju
  • T. H. Stievater
  • Williams S. Rabinovich

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Compound Semiconductors
  • Crystal Lattice Vibrations
  • Electric Fields
  • Electro-Optic Modulators
  • Electrons
  • Fabrication
  • Materials
  • Micromachining
  • Modulation
  • Modulators
  • Optical Properties
  • Optics
  • Phase Shift
  • Quantum Wells
  • Reflectivity
  • Refractive Index
  • Semiconductors

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing