O'Reilly logo

Guided Wave Optics and Photonic Devices by Ajoy Ghatak, Shyamal Bhadra

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

1

Concept of Modes in Optical Waveguides

Ajoy Ghatak and K. Thyagarajan

Indian Institute of Technology Delhi

CONTENTS

1.1    Introduction

1.2    Te Modes

1.3    Tm Modes

1.4    Physical Understanding of Modes

Reference

1.1    INTRODUCTION

In the design of an optical communication system, it is necessary to understand the concept of modes, which will be explained in this chapter. And to understand the concept of modes, it is probably best to consider the simplest planar optical waveguide, which consists of a thin dielectric film sandwiched between materials of slightly lower refractive indices and is characterized by the following refractive-index variation (see Figure 1.1):

n(x)={n1;|x|<d2n2;|x|>d2

(1.1)

with n1 > n2. Equation 1.1 ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required