Polymeric optical spot-size transformer with vertical and lateral tapers

Journal Article (Journal Article)

The design, fabrication, and characterization of a polymeric optical spot-size transformer with vertical and lateral tapers is reported. The vertical taper is formed by utilizing the planarization properties of a polymer, while the lateral taper is defined by photolithography. An optimization method for the taper shape is described based on fundamental results from coupled local mode theory. A total fiber to waveguide insertion loss of 0.6 dB has been measured with the integration of the transformer, an improvement of 2.1 dB. The spatial alignment tolerance for 1 dB excess loss was measured to ±2.7 μm, consistent with theory.

Full Text

Duke Authors

Cited Authors

  • Bakke, T; Sullivan, CT; Mukherjee, SD

Published Date

  • July 1, 2002

Published In

Volume / Issue

  • 20 / 7

Start / End Page

  • 1188 - 1197

International Standard Serial Number (ISSN)

  • 0733-8724

Digital Object Identifier (DOI)

  • 10.1109/JLT.2002.800373

Citation Source

  • Scopus