Open AccessIntegrated polarization rotator made of periodic asymmetric buried Ta2O5 / silica sol-gel waveguides
Author(s) -
Thomas Mangeat,
Ludovic Escoubas,
F. Flory,
Luc Roussel,
Marc de Micheli,
Paul Coudray
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.012436
Subject(s) - polarization rotator , optics , extinction ratio , polarization (electrochemistry) , materials science , waveguide , integrated optics , birefringence , physics , wavelength , chemistry
A ridge waveguide technology exhibiting high polarization dependency is developed for new efficient multi-section passive polarization rotator applications. In the presented configuration, the calculated mode coupling between the waveguide sections is very efficient and allows a polarization rotation with a high extinction ratio at lambda=1,55 mum. Experimental results show efficient polarization rotation with low cross-talk levels (-16dB) and no significant excess losses between sections. However, the overall transmission efficiency is limited by propagation losses and coupling losses to standard optical fibers.