Journal ArticleDOI
Nature of wavelength chirping in directly modulated semiconductor lasers
Thomas L. Koch,John E. Bowers +1 more
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TLDR
In this paper, the inherent connection between frequency deviations and the optical power wave-form of a directly modulated semiconductor laser was derived, providing for the first time a quantitative assessment of inherent optical fiber dispersion penalties.Abstract:
Relations are derived concerning the inherent connection between frequency deviations and the optical power wave-form of a directly modulated semiconductor laser, providing for the first time a quantitative assessment of inherent optical fibre dispersion penalties of directly modulated lasers. The relations also indicate that control of chirp involves only the control of the intensity modulation characteristics and proper current drive of semiconductor lasers. Experimental measurement of FM and IM characteristics of a 1.55 μm DFB laser support the results.read more
Citations
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Journal ArticleDOI
Linewidth broadening factor in semiconductor lasers--An overview
Marek Osinski,J. Buus +1 more
TL;DR: In this article, the authors present an overview of topics related to one of the fundamental parameters for semiconductor lasers-the linewidth broadening factor α that describes the coupling between carrier-concentration-induced variations of real and imaginary parts of susceptibility.
Journal ArticleDOI
Frequency chirping in external modulators
Fumio Koyama,Kenichi Iga +1 more
TL;DR: In this paper, a general formula is given that expresses frequency chirping in some types of external intensity modulators, such as the loss modulator, directional-coupler-type modulator and total-internal-reflection type modulator.
Journal ArticleDOI
Simple measurement of fiber dispersion and of chirp parameter of intensity modulated light emitter
F. Devaux,Y. Sorel,J.F. Kerdiles +2 more
TL;DR: In this article, the dispersion of optical fibers and chirp parameter of modulated light emitters were measured in the -10-to-10 range for optical fiber intensity modulated transmission systems.
Journal ArticleDOI
High-speed modulation of semiconductor lasers
TL;DR: In this paper, an overview of the direct modulation performance of high-speed semiconductor lasers is given, using a cascaded two-port model of the laser, which separates the electrical parasitics from the intrinsic laser and enables these subsections to be considered separately.
Journal ArticleDOI
Room-temperature InP distributed feedback laser array directly grown on silicon
Zhechao Wang,Bin Tian,Marianna Pantouvaki,W Guo,Philippe Absil,Joris Van Campenhout,Clement Merckling,Dries Van Thourhout +7 more
TL;DR: In this article, an optically pumped InP-based distributed feedback laser array was demonstrated for wavelength division multiplexing applications on (001)-silicon operating at room temperature.
References
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Journal ArticleDOI
Theory of the linewidth of semiconductor lasers
TL;DR: In this article, a theory of the spectral width of a single-mode semiconductor laser is presented and used to explain the recent measurements of Fleming and Mooradian on AlGaAs lasers.
Journal ArticleDOI
Measurement of the linewidth enhancement factor α of semiconductor lasers
TL;DR: In this paper, a theory of the amplitude and phase modulation characteristic of a single mode semiconductor laser is presented, where the amplitude modulation couples through the complex susceptibility of the gain medium to the phase.
Journal ArticleDOI
Transient chirping in single-frequency lasers: lightwave systems consequences
TL;DR: In this article, the effect of modulation-induced laser wavelength shifts on optical transmission through dispersive fibres is shown to be a serious limiting factor at bit rates greater than 1 Gbit/s.
Journal ArticleDOI
Classical derivation of the laser rate equation
TL;DR: In this article, the rate equation for the energy (photon) density inside the resonant cavity of a laser oscillator is derived from Maxwell's equations, which can be used to obtain the well-known expression for the ratio of the power that is spontaneously emitted into a single laser mode relative to the total amount of spontaneous emission.
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