Chapter 1:Development of LSPR Based Optical Fiber Sensor Employing Graphene Oxide (GO) for the Detection of Mercury in Water -- Chapter 2:High Sensitivity Refractometer Based on Thermally Stable Turnaround Point Long Period Fiber Grating -- Chapter 3:Raman Distributed Temperature Sensor Performance Analysis Using Wavelet Techniques -- Chapter 4: A Novel Fiber-Optic Parametric Amplifier Scheme with Switchable Large-Gain and Low-Noise Modes -- chapter 5:Impact of Wireless Channel Noise on Seamless Wireless-To-Photonic Symbol Mapping -- chapter 6 :Analysis of Ring Core Hollow Photonic Crystal Fiber Based on Chalcogenide Glass for Transmission of Orbital Angular Momentum Modes in the Near-Infrared Region -- chapter 7:Load Estimation of Aircraft Landing Gears Using Fiber Bragg Grating Sensors -- chapter 8:Silicon Photomultiplier (SiPM) Based Alpha & Beta Hand, Foot and Cloth Contamination Monitor -- chapter 9:Highly Sensitive Biochemical Sensor Based on Nanophotonic Ring Resonator.

This book presents the proceedings of the Biennial Photonics Conference (Photonics 2023) held at IISc, Bengaluru on 5-8 July 2023. It covers topics across multiple areas of photonics, including established areas like optical communication and networks, quantum optics, non-linear and ultrafast photonics , nanophotonics , biophotonics and bioimaging, photonic integrated circuits , fibers and sensors, optical materials and fabrication techniques, optical metrology, and instrumentation, optofluidics, laser applications, optoelectronics. The book also covers emerging areas in photonics, such as THz photonics, structured Light, 2D materials, optomechanics, topological photonics, and AI/ML in photonics. The book will be useful for researchers and professionals interested in the broad field of photonics.