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Proceedings Paper

DFB laser dynamics and noise characterization by high resolution and high dynamic range measurements of its CW optical spectrum
Author(s): Asier Villafranca; José A. Lázaro; Javier Lasobras; Ignacio Garcés
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Paper Abstract

We present results on the characterization of the main parameters of DFB lasers for its use in direct modulation: chirp parameter, linewidth, relaxation frequency and RIN, obtained from measurements of the emitted optical spectrum in continuous operation mode using a high resolution (10 MHz) and high dynamic range (80 dB) optical spectrum analyzer. Results obtained from the characterization of commercial grade available DFB lasers with this method, present typical parameter values, but are also checked with well-know, but more resource demanding, methods involving modulation and optical to electrical conversion.

Paper Details

Date Published: 14 April 2006
PDF: 8 pages
Proc. SPIE 6184, Semiconductor Lasers and Laser Dynamics II, 61841O (14 April 2006); doi: 10.1117/12.661944
Show Author Affiliations
Asier Villafranca, Univ. de Zaragoza (Spain)
José A. Lázaro, Univ. Politècnica de Catalunya (Spain)
Javier Lasobras, Univ. de Zaragoza (Spain)
Ignacio Garcés, Univ. de Zaragoza (Spain)

Published in SPIE Proceedings Vol. 6184:
Semiconductor Lasers and Laser Dynamics II
Daan Lenstra; Markus Pessa; Ian H. White, Editor(s)

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