TY  - BOOK
AU  - Kaul,Thorben
TI  - Epitaxial Design Optimizations for Increased Efficiency in GaAs-Based High Power Diode Lasers
T2  - Innovationen mit Mikrowellen und Licht. Forschungsberichte aus dem Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik
SN  - 3736963963
AV  - TA1700 .E658 2021
KW  - Semiconductor lasers
KW  - Diodes
KW  - Electronic Books
N1  - Description based upon print version of record; 2; Intro --; Contents --; List of Publications --; Abstract --; Kurzfassung --; 1 Introduction --; 1.1 Structure and method of this work --; 2 Fundamentals --; 2.1 Laser technology and market context --; 2.2 Fabrication technology --; 2.3 Mathematical framework of semiconductor lasers --; 2.4 Parameters for characterization of broad area diode lasers --; 2.5 Simulation tools --; 2.6 Device configurations and measurement setups --; 3 Literature Review, Prior State of the Art and Target Specifications --; 3.1 Power and efficiency limiting effects --; an overview --; 3.2 Target specifications --; 3.3 Prior state of the art high power diode lasers and laser bars --; 4 Novel Epitaxial Layer-Stack Design for Increased Efficiency --; 4.1 General epitaxial design considerations --; 4.2 Prior state of the art epitaxial design concepts and their limits --; 4.3 ETAS: The novel extreme triple asymmetric design concept --; 5 Diagnosis and Analysis of Power Limiting Mechanisms --; 5.1 Devices designed and used for diagnosis --; 5.2 Quantifying thermal- and bias-driven contributions to rollover --; 5.3 Bias-driven power limitations --; 5.4 Thermal-driven power limitations --; 6 Performance of Diode Lasers Using Optimized VerticalDesigns --; 6.1 Impact of optical confinement on T0 and T1 --; 6.2 Measurement results of diode laser bars --; 6.3 Short-term perspective for further improved performance --; 7 Conclusion and Outlook --; 7.1 The role of optical loss in thermal power saturation --; 7.2 The role of internal differential quantum efficiency in thermal power saturation --; 7.3 Performance of optimized devices using the novel ETAS design --; 7.4 Outlook --; 8 Acknowledgements --; A Appendix --; B List of Abbreviations --; Bibliography; 2; b
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