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Characterization of the chirp in semiconductor laser under modulation

✍ Scribed by O. Boukari; L. Hassine; O. Latry; M. Ketata; H. Bouchriha

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
599 KB
Volume
28
Category
Article
ISSN
0928-4931

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✦ Synopsis

In this paper we present, shortly, a study of the chirp induced in direct modulated DFB laser. Our description of the chirp is based, first on analytical resolution of the rate equations, and second on a simulation of a heterodyne system with the Optisystem software. This study enables us to visualize the chirp of a DFB laser in the RF field and to characterize it according to the parameters of the modulation of the injection current i(t). We show by using the powerful Volterra series theory that the linear sweep of the laser optical frequency can be obtained by a triangular modulation of the injection current.

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Optical generation of microwave signals
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✍ Young-Kwang Seo; Ajung Kim; Jung-Tae Kim; Woo-Young Choi πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 96 KB

## Abstract We have experimentally demonstrated a new optical microwave signal generation scheme using semiconductor lasers in a master–slave configuration, in which both lasers are directly modulated. The sidebands of the slave laser are locked to those of the master laser by the simple control of