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Radziunas, Mindaugas [Author]; Glitzky, Annegret [Author]; Bandelow, Uwe [Author]; Wolfrum, Matthias [Author]; Troppenz, Ute [Author]; Kreissl, Jochen [Author]; Rehbein, Wolfgang [Author]

Improving the modulation bandwidth in semiconductor lasers by passive feedback

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  • Media type: Text; Report; E-Book
  • Title: Improving the modulation bandwidth in semiconductor lasers by passive feedback
  • Contributor: Radziunas, Mindaugas [Author]; Glitzky, Annegret [Author]; Bandelow, Uwe [Author]; Wolfrum, Matthias [Author]; Troppenz, Ute [Author]; Kreissl, Jochen [Author]; Rehbein, Wolfgang [Author]
  • Published: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2006
  • Language: English
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.1149
  • Keywords: 35-04 ; 35B35 ; 37L65 ; 78A60 ; 42.30.Lr ; 42.55.Px ; 42.60.Fc ; semiconductor laser -- passive feedback -- modulation bandwidth -- direct modulation -- damping -- small signal response -- large signal response -- eye diagram ; 73.40.-c ; article ; 35B60
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  • Description: We explore the concept of passive-feedback lasers for direct signal modulation at 40 Gbit/s. Based on numerical simulation and bifurcation analysis, we explain the main mechanisms in these devices which are crucial for modulation at high speed. The predicted effects are demonstrated experimentally by means of correspondingly designed devices. In particular a significant improvement of the modulation bandwidth at low injection currents can be demonstrated.