Apparent inequivalence between the in- and outcoupling angles of prism coupled IO waveguides


Journal Article

The incoupling and outcoupling angles of a thin film waveguide were determined using the conventional prism coupling configuration. The consistent intermodal spacing observed between incoupling and outcoupling angles indicated that these angles contained equivalent information on the waveguide structure. However, a geometry mismatch between the rotation goniometer and the triangular coupling prisms produced a systematic error in the determination of the outcoupling angles that increased with decreasing mode number. © 1990.

Full Text

Duke Authors

Cited Authors

  • Walker, DS; Putegnat, S; Saavedra, SS; Reichert, WM

Published Date

  • August 15, 1990

Published In

Volume / Issue

  • 78 / 2

Start / End Page

  • 128 - 132

International Standard Serial Number (ISSN)

  • 0030-4018

Digital Object Identifier (DOI)

  • 10.1016/0030-4018(90)90108-6

Citation Source

  • Scopus