Affordable Access

deepdyve-link
Publisher Website

Single-mode GaAs/AIGaAs W waveguides with a low propagation loss.

Authors
  • Byun, Y T
  • Park, K H
  • Kim, S H
  • Choi, S S
  • Lim, T K
Type
Published Article
Journal
Applied optics
Publication Date
Feb 20, 1996
Volume
35
Issue
6
Pages
928–933
Identifiers
DOI: 10.1364/AO.35.000928
PMID: 21069091
Source
Medline
License
Unknown

Abstract

We have designed a low-loss single-mode GaAs/AIGaAs optical waveguide with a symmetric five-layer heterostructure at the 1.31-µm wavelength by use of an effective-index method. Waveguides with a W-shaped refractive-index profile have been grown by use of a metallo-organic chemical vapor deposition technique and fabricated with a chemical wet-etching method. Propagation loss has been measured by use of the Fabry-Perot resonance method and a sequential-cleaving experiment. The measured loss is as low as 0.19 dB/cm for waveguides with 2.3-µm thickness and 4.3-µm width, which is comparable to the lowest-loss semiconductor waveguides yet reported. These waveguides could be used to make low-loss modulators for guided-wave devices.

Report this publication

Statistics

Seen <100 times