Journal ArticleDOI
Theoretical analysis of spectral modulation behaviour of semiconductor injection lasers
TLDR
In this article, the influence of the spectral width on the modulation behavior of semiconductor injection lasers has been investigated theoretically on the basis of multimode rate equations and analytical expressions are derived yielding an effective rate of spontaneous emission for a suitable description of dynamic characteristics of injection lasers.Abstract:
The influence of the spectral width on the modulation behaviour of semiconductor injection lasers has been investigated theoretically on the basis of multimode rate equations. Analytical expressions are derived yielding an effective rate of spontaneous emission for a suitable description of dynamic characteristics of injection lasers. This effective emission rate may drastically exceed the total rate of spontaneous emission into the lasing modes. In the case of large signal modulation it has been shown that a large modulation depth as required for PCM-transmission also yields a considerable spectral broadening.read more
Citations
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Journal ArticleDOI
Calculated spontaneous emission factor for double-heterostructure injection lasers with gain-induced waveguiding
TL;DR: In this paper, the spontaneous emission factor of planar stripe laser with narrow stripe is calculated and it is shown that spontaneous emission is approximately proportional to the solid angle of laser radiation and nearly independent of transverse active layer dimensions.
Journal ArticleDOI
Ultra-high speed semiconductor lasers
Kam Y. Lau,Amnon Yariv +1 more
TL;DR: In this article, the authors examined the possibilities of further extending the bandwidth of semiconductor lasers and discussed the issues related to application of these lasers in actual systems, but they did not consider the application of such lasers in real-world systems.
Journal ArticleDOI
Short-cavity InGaAsP injection lasers: Dependence of mode spectra and single-longitudinal-mode power on cavity length
TL;DR: In this article, simple expressions are given to describe the lower and upper limits of the single-mode (single-frequency) power as a function of the cavity length for InGaAsP injection lasers.
Journal ArticleDOI
New dynamic semiconductor laser model based on the transmission-line modelling method
TL;DR: In this paper, a frequency-dependent gain model was proposed for the transmission line modeling of a modulated laser, from which a sampled optical output waveform was obtained, and a technique of sampling below the optical frequency was introduced to minimize computing time.
Journal ArticleDOI
Large-signal circuit model for simulation of injection-laser modulation dynamics
TL;DR: In this article, a large-signal circuit model of a heterojunction injection laser is presented, which can be easily implemented on general-purpose nonlinear circuit analysis programs, and does not require specialised laser analysis software.
References
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Book
Table of Integrals, Series, and Products
TL;DR: Combinations involving trigonometric and hyperbolic functions and power 5 Indefinite Integrals of Special Functions 6 Definite Integral Integral Functions 7.Associated Legendre Functions 8 Special Functions 9 Hypergeometric Functions 10 Vector Field Theory 11 Algebraic Inequalities 12 Integral Inequality 13 Matrices and related results 14 Determinants 15 Norms 16 Ordinary differential equations 17 Fourier, Laplace, and Mellin Transforms 18 The z-transform
Journal ArticleDOI
Calculated spectral dependence of gain in excited GaAs
TL;DR: In this article, the calculated dependence of the gain coefficient on photon energy and excitation level in GaAs is given for 297 and 77 K. The qualitative behavior of the results is in agreement with experiment.
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Dynamic behaviour of semiconductor lasers
TL;DR: In this paper, it was shown that spontaneous emission in a semiconductor injection laser has an important effect on the response of the laser to a step current and simple analytical approximations of the description of the transient response, also useful for the study of the response to other current waveforms, are derived.
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