All-Optical communication is communication that uses light to carry information. It can be performed visually or by using electronic devices. The earliest basic forms of optical communication date back several millennia, while the earliest electrical device created to do so was the photophone, invented in 1880. All-optical communication plays an important role in major domains such as high-speed networks, photonic integrated circuits, health care, sensors, energy, and environmental applications. This book will provide an overview of the recent developments in all-optical communication technology, relevant and critical materials, and recent and emerging applications in various domains.

This book focuses on all-optical communication technology and applications in the most critical domains: microwaves, Meta surface, Optoelectronics, and photonic fibers. It provides insight to the readers about all-optical technology advancements, fabrication, challenges, applications, and future perspectives all-optics communication in real-time applications. It also discusses the use of photonic crystals in different all-optical communication applications. The book is divided into the following sections:

1. Recent progress in all-optical communication including high-speed networks for effective data transmission, photonic crystal-based development of optical components such as splitters, encoders, decoders, and routers, and potential problems in obtaining the high-speed networks using the photonic integrated circuits technology.

2. Novel materials used for the realizing the optical components such as LEDs, wide band gap photodiodes and photonic crystals based optical components.

3. Emerging all-optical communication applications in healthcare, energy and environmental, underwater communication, and the energy crisis.

Shanmuga Sundar Dhanabalan is an accomplished researcher with a proven track record in designing, developing, and translating micro- and nano-scale devices. He is currently leading the 'Wearable and Connected Sensors' team as a theme leader at RMIT University, Melbourne, Australia, focusing on materials, sensors, flexible and stretchable devices, wearables, optics, and photonics.

He is a recipient of the highly competitive and prestigious ARC Industry Fellowship. He is the chief investigator of three active research grants related to wearable and flexible electronics. In the last three years, his work has generated more than $4.1M through industry and university collaborations and secure funding from CRC-P and ARC. He has secured a competitive grant, the 'CONICYT Postdoctoral Fellowship,' from the Chilean government (Ranked 4 out of 250 applicants), with a total cost of 81 million Chilean Pesos (CLP) for three years as a Principal Investigator from 2018 - 2021.

He has experience working at international laboratories and research centres in India, Chile, and Australia. He has delivered more than 20 invited talks and keynote presentations at various international conferences. He serves as a topical guest editor for IEEE, Elsevier, and Springer journals. He has published 42 journal articles, 8 books, 10 book chapters, 18 conference presentations, and holds 2 Australian and 1 Indian patent. He is a member of professional societies such as Senior Member - IEEE, IEEE Photonics Society, Royal Society of Victoria, and ARC Research Hub for Connected Sensors for Health. In addition, he served as a session chair and technical committee member in various international conferences.

Arun Thirumurugan is an assistant professor at the University of Atacama, Sede Vallenar, Vallenar, Chile. He completed his PhD at the National Institute of Technology (NIT), Tiruchirappalli, India. He has worked as a postdoctoral fellow at the Institute of Physics, India, and University of Chile, Santiago, Chile. His research interests include the synthesis and surface modification of nanomaterials for energy and environmental applications. He has reviewed over 180 articles for various publishers and has served in editorial roles for several journals, including the Journal of Energy Chemistry, International Journal of Energy Research, Journal of Nanomaterials, Social Impacts, Discover Chemical Engineering, Journal of Physics: Condensed Matter, Optical and Quantum Electronics, and Micromachines. He has more than 120 publications in his credit and edited many books for Springer, Elsevier, Taylor & Francis, and IOP Publishing.

T. Sridarshini is currently working as Assistant Professor in Department of Electronics and Communication Engineering, College of Engineering, Anna University, Chennai, India. She has completed her doctoral degree in the field of Photonics which mainly focuses on "Photonic crystals for passive optical components for optical communication systems", from Anna University, Chennai. Her areas of research are optical communication & amp; networks and Photonics. She has contributed about 25 papers in reputed international/ national journals and 5 book chapters.

Preface

Acknowledgements

Editor biographies

List of contributors

1 Introduction

2 Undirectional bulk growth of 1,3,5-triphenylbenzene single crystal and doping effect on its optical properties

3 Performance analysis of SOA-based all-optical logic gates over FSO channel

4 Switching characteristics of optical solitons through inelastic interactions

5 Silicon photonic modulators for high-speed applications - a review

6 MIMO-FSO system for various weather conditions

7 AI in optics and photonics

8 Blood components detection in octagonal-cored photonic crystal fiber biosensor for healthcare applications

9 Photonic biosensors for healthcare applications

10 Integrated photonic devices for cancer detection

11 Absorbers as biosensors: leveraging absorption phenomena for enhanced biosensing