Polymeric digital optical modulatorbased on asymmetric branch

1 February 2001

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 37 (3) , 172-174
https://doi.org/10.1049/el:20010129

Abstract

A digital optical modulator based on an asymmetric Y-branch waveguide is proposed and fabricated by using an electro-optic polymer. The operating point is initially shifted to the off-state utilising the asymmetry in the branch to provide an initial zero-state with no electrical bias. It has been confirmed that the high extinction ratio can be obtained with a low drive voltage. An extinction ratio of 25 dB is demonstrated for a drive voltage of 20 V using a polymer, PMMA-DRl with r₃₃ of 5 pm/V at 1.3 µm.

Keywords

This publication has 3 references indexed in Scilit:

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