ABSTRACT

1

Introduction

2

Materials for Lasers

3

Devices’ Structures and Performance

 3.1

Active Region

 3.2

Ohmic Contacts to p-Type Layers

 3.3

Devices

  3.3.1

Gain-Guided Lasers

  3.3.2

Ridge Waveguide Lasers

  3.3.3

Channeled-Substrate Planar Waveguide Lasers

  3.3.4

Lateral Index-Guided Lasers by Selective Disordering

  3.3.5

Distributed Bragg Reflector Lasers

  3.3.6

Vertical-Cavity Surface-Emitting Lasers

  3.3.7

Lasers on ZnSe Substrates

  3.3.8

Lasers Grown by Metal-Organic Chemical Vapor Deposition

4

Laser Characteristics

 4.1

Gain Mechanism

 4.2

Thermal Index Guiding

5

Degradation

 5.1

Active Layer Degradation

  5.1.1

Rapid Degradation

  5.1.2

Reduction of Stacking Faults

  5.1.3

Gradual Degradation

 5.2

Contact Degradation

6

Applications

 6.1

Optical Data Storage

 6.2

Optical Fiber Communication

 6.3

Printers

 6.4

Displays

 6.5

Laser Pointers

 6.6

Underwater Measurement

 6.7

Medical Care

 6.8

Other Applications

7

Summary

References