Guided Wave Optics and Photonic Devices

2	Modes in Optical Fibres Ajoy Ghata and k. Thyagarajan Indian Institute of Technology Delhi

CONTENTS

2.1    Introduction

2.2    Some Historical Remarks

2.3    Optical Fibre

2.4    Attenuation in Optical Fibres

2.5    Modes of Step-Index Fibre

2.6    Single-Mode Fibre

2.6.1    Spot Size of Fundamental Mode

Reference

2.1    INTRODUCTION

With the development of extremely low-loss optical fibres and their application to communication systems, a revolution has taken place during the last 35 years. In 2001, using glass fibres as the transmission medium and light waves as the carrier waves, information was transmitted at a rate of more than 1 Tb/s (which is roughly equivalent to the transmission of about 15 million simultaneous telephone conversations) ...