Vis enkel innførsel

dc.contributor.authorLindecrantz, Susan Mariah
dc.contributor.authorTinguely, Jean-Claude
dc.contributor.authorAhluwalia, Balpreet Singh
dc.contributor.authorHellesø, Olav Gaute
dc.date.accessioned2016-03-10T09:40:22Z
dc.date.available2016-03-10T09:40:22Z
dc.date.issued2015
dc.description.abstractA Mach-Zehnder interferometer made with shallow rib waveguides is studied experimentally and using simulations. The rib-height giving single-mode guidance is found as function of core thickness and polarization. Devices have been made using shallow rib waveguides (5 nm rib height) in silicon nitride. The sensitivity and the limit of detection (LOD) is studied experimentally regarding the length of the sensing window and for two cover media: water with hydrochloric acid (HCl) and polydimethylsiloxane (PDMS). For HCl-solution, which is the standard method for testing Mach-Zehnder interferometers, the measured sensitivity and LOD was 13000π rad/RIU and 1.1x10^-7π RIU, respectively, for a 2 cm long sensing window. This is comparable to the best results reported previously. With PDMS as the cover medium, the temperature of the device was increased in order to measure the sensitivity. This is a new approach that makes it possible to measure the sensitivity with a solid cover medium which has a relatively high temperature coefficient for the refractive index. Measured sensitivity and LOD was 15200π rad/RIU and 1.3x10^-7π RIU, respectively, again for a 2 cm long sensing window. Measured sensitivities agreed with simulations and increased linearly with sensing length as expected. However, the LOD showed a minimum for 2 cm sensing length. This was mainly due to increased noise for 3 cm sensing length, both for HCl-solution and PDMS. With higher sensitivity and similar LOD for PDMS compared to HCl-solution, it is concluded that using the temperature dependence of PDMS is a good alternative for testing Mach-Zehnder interferometers.en_US
dc.descriptionPublished version. Source at <a href=http://dx.doi.org/10.2971/jeos.2015.15020>http://dx.doi.org/10.2971/jeos.2015.15020</a>.en_US
dc.identifier.citationJournal of the European Optical Society - Rapid Publications 2015, 10(15020):1-7en_US
dc.identifier.cristinIDFRIDAID 1306355
dc.identifier.doi10.2971/jeos.2015.15020
dc.identifier.issn1990-2573
dc.identifier.urihttps://hdl.handle.net/10037/8825
dc.identifier.urnURN:NBN:no-uit_munin_8431
dc.language.isoengen_US
dc.publisherEuropean Optical Societyen_US
dc.rights.accessRightsopenAccess
dc.subjectRib waveguideen_US
dc.subjectintegrated opticsen_US
dc.subjectMach-Zehnder interferometeren_US
dc.subjectpolydimethylsiloxaneen_US
dc.subjectVDP::Technology: 500en_US
dc.titleCharacterization of a waveguide Mach-Zehnder interferometer using PDMS as a cover layeren_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel