Sensitivity of Polarimetric Waveguide Interferometer for Different Wavelengths

Abstract

This publication presents experimental measurement methodology which allows to determine the characteristics of sensitivity planar differential interferometer. To confirm data reliability additional measurements were done such as simulations in OptiBPM software by Optiwave. Curves received from two methods: experimental and theoretical, were summed up and compared. Conclusions were made on their basis, for example the influence of used wavelengths or refractive index of single mode waveguide cladding on curves of sensitivity differential interferometer using planar waveguide received from the ion exchange method.

Sensors and Systems for the Detection of Explosive Devices - An Overview

“…The ECD sensor by itself cannot distinguish individual types of explosives from each other or certain interferents; so a gas chromatograph is placed at the front end to allow temporal identification of different explosives. This type of detector has a typical sensitivity of about 1 ppb for most electron-capture compounds [41,42].…”

Methods of Determining the Beat Length of Planar Waveguides

“…At the output of the structure (after the bringing of light from the mode TE and TM into one polarization plane through the polarizer P) the detector D records the interferential signal depending on the phase dierence between the modes. The most important parameter in the dierential interferometer, describing the waveguide is the beat length [9]. Orthogonal modes propagating in a planar waveguide may be described by the propagation constants [10,11] β TE = β TM .…”

Spectropolarimetric analyses of optical single mode SU8 waveguide layers

“…Almost always the reading system works on the following principle: a change of the measured parameter is converted to a change of the properties of the optical beam in the measurement system, leading to changes in the intensity of light recorded by the detector. One of the commonly used sensor systems is the differential interferometer, based on planar waveguides [8][9][10][11].…”