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arXiv · 1812.03809

Single-Multi-Single Fibre Optic Structure Based Water Depth Sensor

Garima Bawa·Krishnendu Dandapat·Gyanendra Kumar·Indrajeet Kumar·Saurabh Mani Tripathi
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Abstract

We propose and demonstrate a technique easy to fabricate and measure water depth based on selective mode excitation using single-multi-single (SMS) mode structure. The high extinction ratio has been achieved by equally exciting preselected modes of the multi-mode fibre (MMF) by optimizing the core offset at both the input/output splices of the SMS structure, and a wavelength shifting has been achieved by varying the ratio of major to minor axis of the MMF loop. A theoretical analysis of the observed behaviour is also presented showing an excellent agreement between the theoretical and experimental results.

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Garima Bawa, Krishnendu Dandapat, Gyanendra Kumar, Indrajeet Kumar, Saurabh Mani Tripathi. 2018-10-14. Single-Multi-Single Fibre Optic Structure Based Water Depth Sensor. https://arxiv.org/abs/1812.03809

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