Photonics in waveguide based interferometer sensors
Prashant B. Patel
Dr. D. Y. Patil Institute of Technology (DIT), India
: Res J Opt Photonics
Abstract
Accurate measurement of various concentrations of solids, gases and liquid have become more and more important in chemical analysis, biomedical, food, environmental monitoring and in the semiconductor manufacturing area. This webinar is based on Mach Zehnder Interferometer Waveguide (MZIW) structure for Refractive Index (RI) measurement application and deals with interferometer using single mode transmission. Waveguide under consideration is very small in size and faces difficulty in the light guiding into it. Instead of the penetration depth of evanescence wave, light guiding efficiency dominates the detection sensitivity of structure. So careful light guiding is an important aspect of the photonics structure. As the concentration and hence the refractive index changes the path length of the light in measurement arm of the structure and this change in path length produces the corresponding changes in phase shift of light passing through it. Other arm is reference arm in which phase shift remains constant. Details discussions about various tests carried out using Beam Propagation Method (BPM) technique using Beam PROP software to analyze MZIW structure and measurement of refractive index of medium using this structure. The examination carried out on the behavior of MZIW structure using Y branches and establishes the general design principles. The main objective is to provide continuous quantitative and qualitative analysis. This reduces the time laps produced due to traditional measurement. It also maintains precision and accuracy of the sample analysis. Photonics based sensors are one class of sensors which satisfies the objectives. This technology gives rise to new devices and systems having improved sensitivity and accuracy for sensing application. What will audience learn from your presentation? The above webinar elucidates the optimization of MZIW structure and its application for refractive index measurement. For short span of refractive index measurement it shows linear relation between refractive index and change in phase shift. These types of waveguide structure are useful in various measurement applications that changes phase of light passing through its measurement arm. The results obtained from BPM simulation and Interferometer theory shows reasonable agreement. This MZIW structure can be tuned for specific application The webinar may contribute to a better understanding of necessary waveguide techniques for developing micro- and nano-scale OMZI structure. Study bridges this crucial gap by providing an explanation through theory, simulations and experimentation as to why such dimensions have been used over the years and where the cut-off dimension of the Y-junction lies for OMZI structure and its sensitivity improvement. The entire platform can be tuned for specific biosensing application.
Biography
Prashant B. Patel is working as Associate Professor in Instrumentation department at Dr. D. Y. Patil Institute of Technology (DIT). He has completed Ph.D. from SRTMU Nanded , B.E. (Instrumentation) from NMU, Jalgaon and M.E. (Instrumentation) from Government College of Engineering, Pune University. He has also completed PGDMM (Marketing Management) from Indian Institute of Cost and Management Studies and Research, Pune University. He has secured first rank during PGDMM course at the Institute and second rank at Pune University. His research area is interferometer based fiber optics sensors. He has over 27 years of experience in Industry, teaching, academic planning, administration, training and campus recruitments. He is Fellow-IEI (FIE) and Life Member ISTE, BMESI, ISOI, ISA and IETE. He has published 38 papers at National / International conferences and 05 papers at technical Journals. He is reviewer for “Optical Fiber Technology” Elsevier publication Journal and Journal of the European Optical Society. He has worked as Executive Committee member for IETE and IEI Pune center. He has completed international certification from “DALE CARNEGIE” in “High Impact Teaching Skills” under Mission 10X program of Wipro Technologies. He has signed MoU with various organizations like, Infosys Ltd., B and R automation, BOSCH, Schneider, Yamaha Motors, Sungard etc. He has an impressive record in mentoring students and academic leadership.
