Widely tunable directional coupler filters with 1D photonic crystal
2005 (English)In: 2005 7th International Conference on Transparent Optical Networks, Vol 1, Proceedings, IEEE , 2005, 136-139 p.Conference paper (Refereed)
We present two concept examples for adding a wide range tunability to Si/SiO2 devices involving a photonic crystal element. They are based on a directional coupler filter of two different geometries, where one of the arms is a Bragg Reflection Waveguide (BRW) used for the bandwidth improvement. The tuning relies on changing the properties of the BRW core. As an illustration we consider the smectic A* liquid crystal as the core material and show that ca 100 nm tuning range is achievable by the core index variations of 0.006 under applying electric field of 5 V/mu m.
Place, publisher, year, edition, pages
IEEE , 2005. 136-139 p.
optical filters, directional couplers, Bragg reflection waveguides, photonic crystal, liquid crystals, electrical tuning
IdentifiersURN: urn:nbn:se:kth:diva-43133DOI: 10.1109/ICTON.2005.1505769ISI: 000234111300029ScopusID: 2-s2.0-33745725823ISBN: 978-078039236-6OAI: oai:DiVA.org:kth-43133DiVA: diva2:448520
2005 7th International Conference on Transparent Optical Networks, ICTON 2005; Barcelona, Catalonia; Spain; 3 July 2005 through 7 July 2005
QC 201110172011-10-172011-10-132014-12-01Bibliographically approved