Guided Wave Optics and Photonic Devices

3	Dispersion in Optical Fibres Ajoy Ghatak and Anurag Sharma Indian Institute of Technology Delhi

CONTENTS

3.1    Introduction

3.2    Intermodal Dispersion in Multimode Fibres

3.3    Material Dispersion

3.4    Dispersion and Bit Rates in Multimode Fibres

3.5    Dispersion in Single-Mode Fibres

Reference

3.1    INTRODUCTION

In digital communication systems, information to be sent is first coded in the form of pulses and then these pulses of light are transmitted from the transmitter to the receiver where the information is decoded. The larger the number of pulses that can be sent per unit time and still be resolvable at the receiver end, the larger the transmission capacity of the system. For example, a telephone conversation is converted ...