Non reciprocal silicon-organic nanophotonic structures

First published in
Proceedings of SPIE  
Number in series
8113
Article Number
81130H
Citation
Linear and nonlinear optics of organic materials XI : 21 - 22 August 2011, San Diego, California, United States . - (Proceedings of SPIE ; vol. 8113): 81130H (2011)
Contribution to Conference
Linear and nonlinear optics of organic materials XI  
Publisher DOI
10.1117/12.896703
Scopus ID
2-s2.0-80053517872
Publisher
SPIE
ISBN
978-0-8194-8723-0
We present a setup to measure the nonreciprocal magneto-optical phase shift in air and polymer cladded silicon on insulator waveguides. A high sensitivity could be achieved for the setup sufficient to determine the effect produced by silicon and silica. A silicon waveguide covered with a Fe3O 4 nanoparticle containing polymer shows an amplitude modulation resulting from Faraday ellipticity which is of the same order of magnitude as the Faraday effect in silicon. We further present the theoretical concept of an optical isolator based on resonance splitting in a silicon ring resonator covered with a magneto-optical polymer cladding. A polymer magneto-optical cladding causing a 0.01 amplitude of the offdiagonal element of the dielectric tensor is assumed. It is shown that the derived resonance splitting of the clockwise and counterclockwise modes increases for smaller ring radii. For the ring with a radius of approximately 1.5 μm, a 29 GHz splitting is demonstrated. An integrated optical isolator with a 10μm geometrical footprint is proposed based on a critically coupled ring resonator. © 2011 SPIE.
DDC Class
530: Physik