Abstract
The steady-state longitudinal-mode spectrum of semiconductor lasers has been extensively studied, and major observed features can be understood in terms of modal competition in a common gain reservoir. It was generally agreed that gain saturation in semiconductor lasers is basically homogeneous. Thus, a well-behaved index-guided laser should oscillate predominantly in a single-longitudinal mode above lasing threshold [41, 42]. This has been verified extensively in lasers of many different structures. It was also recognized that a single-mode laser will not remain single-moded during turn-on transients and high-frequency modulation. This can be predicted theoretically from numerical solutions of the multimode rate equations [43]. The optical spectrum of a semiconductor laser during excitation transient has been observed by many researchers [44, 45, 46, 47, 48, 49, 50].
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© 2011 Springer-Verlag Berlin Heidelberg
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Lau, K.Y. (2011). Dynamic Longitudinal Mode Spectral Behavior of Laser Diodes Under Direct High-Frequency Modulation. In: Ultra-high Frequency Linear Fiber Optic Systems. Springer Series in Optical Sciences, vol 159. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16458-3_6
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DOI: https://doi.org/10.1007/978-3-642-16458-3_6
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