Chyeguide
Contents
1. Quantum Well Design 4
1.1 Gain Peak Wavelength 4
1.2 Quantized Energy Levels 7
1.3 Analytical Expressions for Confined Energy Levels 11
1.4 Optical Gain 12
1.5 Spontaneous Emission 18
1.6 Differential Gain and Linewidth Enhancement Factor 20
1.7 Calculation Examples 22
2. Strained Quantum Well Model 37
2.1 Effects of Strain on QW Performance 37
2.2 Bandgap Energy 39
2.3Effective Mass 41
2.4 Parameters for Ternary and Quaternary Material Systems 41
3. InGaAsP Quantum Well Examples 45
3.1 Applications to 1.55 μm Band 45
3.2 Applications to 1.3 μm Band 55
4. AlGaInAs Quantum Well Examples 64
4.1 QW Parameters 64
4.2 Gain, Spontaneous Emission, Differential Gain, and Differential Refractive Index 65
4.3 Transition Wavelength of First Energy Levels 68
Appendix A 74
Appendix B 74
Appendix C 76
References 77
Matlab Programs 80
Example 1: InGaAsP material systems 80
Example 2: AlGaInAs material systems 89
Total 95 pages, 48 figures, 25 tables, Matlab programs ~700 lines
QW Design
Engineering Notes: Quantum Well Design and Simulation Programs
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