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Measurement of complex coupling coefficients of directional coupling by thermo-optic modulation

H.Gnewuch
University of Cambridge, Institute of Biotechnology, Cambridge CB2 lQT, United Kingdom

J.E.Román, R.D.Harris, J.S.Wilkinson
Optoelectronics Research Centre, University of Southampton, UK

R.Ulrich
Technische Universitat Hamburg-Harburg, Optik und MeStechnik, 21701 Hamburg, Germany

Introduction

Directional coupling between two parallel singlemode optical waveguides is the functional principle underlying numerous integrated optical devices, such as modulators, filters and sensors. As the coupling efficiency depends critically on the synchronism of wave propagation and on the field overlap of the two guides, tight tolerances apply in waveguide fabrication, and a precise determination of the coupling parameters is essential. ...


IPR '96 Boston Apr (1996) pp.439-442

Southampton ePrint id: 76902

 

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Copyright University of Southampton 2006