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Polarization beam splitter building block for InP based generic photonic integrated circuits

 
: Baier, M.F.; Soares, F.M.; Passenberg, W.; Gaertner, T.; Moehrle, M.; Grote, N.

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Institute of Electrical and Electronics Engineers -IEEE-:
26th International Conference on Indium Phosphide and Related Materials (IPRM 2014). Proceedings : Montpellier, France, 11 - 15 May 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5730-9
ISBN: 978-1-4799-5729-3
2 S.
International Conference on Indium Phosphide and Related Materials (IPRM) <26, 2014, Montpellier>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()

Abstract
We demonstrate a fully integrated polarization beam splitter with a polarization extinction ratio above 25dB for both polarization states and an insertion loss of 2.5dB. The footprint of the device including electrical contacts is 0.4×2mm2. A Mach-Zehnder configuration is used, the birefringence in both arms differs due to different waveguide widths. Fabrication tolerances can be compensated with thermal tuning. The device is realized in our generic integration platform, making it viable to provide monolithically integrated solutions for polarization diversity applications.

: http://publica.fraunhofer.de/dokumente/N-324376.html