A low cost optical fiber pH sensor has been proposed. The sensor is configured by coating a pH sensitive film of hydrogel synthesized by Poly (Vinyl Alcohol)/Poly (Acrylic Acid) blend coated on an etched single mode fiber. The pH response of the gel coated fiber is studied. © OSA 2014.

Yugender Goud Kotagiri

Department of Chemistry

P.V.N. Kishore

M. Sai Shanar

P. Vengal Rao

G. Srinivasa Rao

Indian Institute of Technology Palakkad&nbsp;(IIT Palakkad or IIT PKD) is a public autonomous&nbsp;engineering&nbsp;and&nbsp;research&nbsp;institute located in&nbsp;Palakkad,&nbsp;Kerala. It was&nbsp;one of the five new&nbsp;IITs&nbsp;proposed in the&nbsp;2014 Union budget of India. The campus was inaugurated on 3 August 2015. The institute has 94 faculty, 978 students, and 63 non-teaching staffs.

IT Palakkad currently offers four-year Bachelor of Technology (B.Tech) and two years MS programmes in 8 different engineering disciplines including&nbsp;Computer Science, Electrical, Mechanical, Civil among others.

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Journal	International Conference on Fibre Optics and Photonics, 2014
Publisher	Optical Society of America