Contents -- Preface -- 1. Introduction -- 1.1 Historical Developments -- 1.2 Semiconductor Materials -- 1.3 Operating Principles -- 1.4 Applications -- 1.5 Book Overview -- 1.6 Future Challenges -- References -- 2. Basic Concepts -- 2.1 Introduction -- 2.2 Optical Gain -- 2.2.1 Gain spectrum and bandwidth -- 2.2.2 Gain saturation -- 2.3 Dielectric Waveguide -- 2.4 Condition for Amplification -- 2.5 P-N Junction -- 2.6 Amplifier Characteristics -- 2.7 Multiquantum Well Amplifiers -- References -- 3. Recombination Mechanisms and Gain -- 3.1 Introduction -- 3.2 Radiative Recombination -- 3.2.1 Condition for gain -- 3.2.2 Gain calculation -- 3.2.3 Spontaneous emission rate -- 3.3 Non-radiative Recombination -- 3.3.1 Auger effect -- 3.3.2 Surface recombination -- 3.3.3 Recombination at defects -- 3.3.4 Carrier leakage over the heterobarrier -- 3.4 Quantum Well Amplifiers -- 3.4.1 Energy levels -- 3.4.2 Optical gain and Auger recombination -- 3.4.3 Strained quantum well amplifiers -- 3.5 Gain in Quantum Wire (QWR) and Quantum Dot (QD) Structures -- References -- 4. Epitaxial Growth and Amplifier Designs -- 4.1 Introduction -- 4.2 Material Systems -- 4.3 Epitaxial Growth Methods -- 4.3.1 Liquid phase epitaxy -- 4.3.2 Vapor phase epitaxy -- 4.3.3 Metal organic chemical vapor deposition -- 4.3.4 Molecular beam epitaxy -- 4.3.5 Chemical beam epitaxy -- 4.4 Strained Layer Epitaxy -- 4.5 Selective Area Growth -- 4.5.1 Model of SAG -- 4.5.2 Materials growth using SAG -- 4.6 Amplifier Designs -- 4.6.1 Leakage current -- 4.7 Growth of QWR and QD Materials -- References -- 5. Low Reflectivity Facet Designs -- 5.1 Introduction -- 5.2 Low Reflectivity Coatings -- 5.3 Buried Facet Amplifiers -- 5.4 Tilted Facet Amplifiers -- 5.5 Amplified Spontaneous Emission and Optical Gain -- References -- 6. Amplifier Rate Equations and Operating Characteristics.

6.1 Introduction -- 6.2 Amplifier Rate Equations for Pulse Propagation -- 6.3 Pulse Amplification -- 6.4 Multichannel Amplification -- 6.5 Amplifier Application in Optical Transmission Systems -- 6.5.1 In-line amplifiers -- 6.5.2 Optical pre-amplifier -- 6.5.3 Power amplifier -- 6.6 Amplifier Noise -- 6.6.1 Noise analysis for optical transmission -- 6.7 Gain Dynamics -- 6.7.1 Model of gain recovery -- 6.8 SOA with Carrier Reservoir -- References -- 7. Photonic Integrated Circuit Using Amplifiers -- 7.1 Introduction -- 7.2 Integrated Laser and Amplifier -- 7.3 Multichannel WDM Sources with Amplifiers -- 7.4 Spot Size Conversion (SSC) -- 7.5 Mach-Zehnder Interferometer -- 7.6 Photoreceiver -- References -- 8. Functional Properties and Applications -- 8.1 Introduction -- 8.2 Four-Wave Mixing -- 8.2.1 CW FWM results -- 8.2.1.1 FWM analysis -- 8.2.2 Pulsed FWM results -- 8.2.3 FWM bandwidth -- 8.3 Cross Gain Modulation -- 8.3.1 Rate equations for multiple pulse propagation -- 8.3.2 Bandwidth of cross gain modulation -- 8.4 Cross Phase Modulation -- 8.4.1 Mach-Zehnder interferometer -- 8.5 Wavelength Conversion -- 8.6 Optical Demultiplexing -- 8.6.1 FWM based scheme -- 8.6.2 Cross phase modulation based scheme -- 8.7 OTDM System Applications -- 8.7.1 Clock recovery -- 8.7.2 OTDM transmission -- 8.7.3 Gain-transparent SOA-Switch -- References -- 9. Optical Logic Operations -- 9.1 Introduction -- 9.2 Optical Logic XOR -- 9.2.1 XOR using SOA-MZI -- 9.2.1.1 Simulation -- 9.2.2 XOR using semiconductor optical amplifier-assisted fiber Sagnac gate -- 9.2.3 XOR using terahertz optical asymmetric demultiplexer (TOAD) -- 9.2.4 XOR using UNI gate -- 9.2.5 XOR optical gate based on cross-polarization modulation in SOA -- 9.2.6 XOR using FWM in semiconductor optical amplifier with return-to-zero phase-shift-keying (RZ-DPSK) modulated input -- 9.3 Optical Logic OR.

9.3.1 OR gate using gain saturation in an SOA -- 9.3.2 OR gate using a SOA and delayed interferometer (DI) -- 9.3.2.1 Experiment -- 9.3.2.2 Simulation -- 9.4 Optical Logic AND -- 9.4.1 Optical logic AND gate using a SOA based Mach-Zehnder interferometer -- 9.4.1.1 Experiment -- 9.4.1.2 Simulation -- 9.5 Optical Logic INVERT -- 9.6 Effect of Amplifier Noise -- 9.6.1 XOR operation -- 9.6.2 AND operation -- 9.6.3 OR operation -- 9.6.4 NAND operation -- 9.7 Optical Logic Using PSK Signals -- References -- 10. Optical Logic Circuits -- 10.1 Introduction -- 10.2 Adder -- 10.3 Parity Checker -- 10.4 All-optical Pseudo-Random Binary Sequence (PRBS) Generator -- 10.5 All-Optical Header Processor -- 10.5.1 Multi-output based on two pulse correlation principle -- 10.5.2 All-optical packet header processor based on cascaded SOA-MZIs -- 10.5.3 Ultrafast asynchronous multi-output all-optical header processor -- References -- 11. Quantum Dot Amplifiers -- 11.1 Introduction -- 11.2 Quantum Dot Materials Growth -- 11.3 Quantum Dot Amplifier Performance -- 11.4 Gain Dynamics -- 11.4.1 Gain dynamics - one state model -- 11.4.2 Gain dynamics - two state model -- 11.4.3 Gain recovery results -- 11.5 Functional Performance -- 11.5.1 Amplification -- 11.5.2 Cross gain modulation and wavelength conversion -- 11.5.3 Four-wave mixing -- 11.6 Optical Logic Performance -- 11.6.1 XOR, OR, AND optical logic operations -- 11.6.2 PRBS generator -- References -- 12. Reflective Semiconductor Optical Amplifiers (RSOA) -- 12.1 Introduction -- 12.2 RSOA Performance -- 12.3 Pulse Propagation Model and Gain Dynamics -- 12.4 RSOA Based Transmitter-Concept -- 12.5 Optical Transmission Applications -- References -- 13. Two-Photon Absorption in Amplifiers -- 13.1 Introduction -- 13.2 Two-Photon Absorption in Semiconductors -- 13.3 Phase Dynamics and Other TPA Studies.

13.3.1 Optical sampling -- 13.3.2 Clock recovery -- 13.3.3 Two-photon gain (TPG) -- 13.3.4 TPA in QD-SOA -- 13.4 Optical Logic Performance -- 13.4.1 Boolean logic (XOR, AND, NAND) operations -- 13.4.2 PRBS generation -- References -- 14. Semiconductor Optical Amplifiers as Broadband Sources -- 14.1 Introduction -- 14.2 High Power Broadband SOA Type Source -- 14.3 Wavelength Division Multiplexing (WDM) Applications -- 14.4 Optical Coherence Tomography Source -- 14.5 Sensor Applications -- References -- Index.