Microwave Photonics, 2nd Edition

2	Femtosecond All-Optical Devices for Ultrafast Communication and Signal Processing Osamu Wada

CONTENTS

2.1    Introduction

2.2    Advantages and Requirements of Femtosecond Devices

2.3    Recent Progress in Femtosecond Light Sources

2.3.1    Monolithic Mode-Locked Lasers

2.3.2    Pulse Waveform Control Devices

2.4    Femtosecond All-Optical Switches

2.4.1    All-Optical Switches with Semiconductor-Integrated Structures

2.4.1.1    Optoelectronic-Integrated All-Optical Switches

2.4.1.2    Symmetric Mach–Zehnder All-Optical Switch

2.4.2    All-Optical Switches Based on Ultrafast Phenomena in Semiconductors

2.4.2.1    All-Optical Spin Polarization Switch

2.4.2.2    All-Optical Switch Using Two-Photon Absorption

2.4.2.3    Intersubband Transition ...