Mach-Zehnder interferometry measurement of the elctro-optic effect in a poled polymer film

M. J. Shin, H. R. Cho, S. H. Han, J. W. Wu

Research output: Contribution to journalConference articlepeer-review

Abstract

Two different configurations, reflection and transmission, of Mach-Zehnder interferometer(MZI) are introduced for the measurement of the electro-optic coefficients in a poled polymer thin film. The MZI measurement of the electro-optic coefficients has an advantage of permitting the determination of the electro-optic tensor coefficients, r13 and r33, independently, when compared with the single-beam polarization interferometer. In the reflection configuration of two beam interferometric measurement, a proper consideration of the optical path change, due to the reflection angle change, is found to be critical in determining the absolute value of the electro-optic coefficients, while the transmission configuration allows the independent determination of the electro-optic coefficients in the direction of the ordinary and the extraordinary optic axes.

Bibliographical note

Funding Information:
This work is supported by the Korea Science and Engineering Foundation (Grant No. 95-0300-06-01-3) and by the Basic Science Research Institute Program, Ministry of Education, Republic of Korea (Grant No. BSRI-97-2428).

Keywords

  • Electro-Optic Coefficient
  • Mach-Zehnder Interferometry
  • Refractive Index

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