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Optical feedback tolerance of mode-locked laser diodes and some feedback reduction methods: a numerical investigation

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Abstract

The effects of optical feedback on the dynamics of mode-locked lasers are investigated numerically. It is found that, with an external reflectance in excess of a critical value, stable fundamental mode-locked operation is destroyed in most cases, except possibly where the external cavity length is near a multiple of the optical length of the laser. Optical isolation by concatenated amplifier-absorber modules has been investigated and found to be possible in principle, but requiring high currents and fast SA circuit response times and with its quality dependent on the module and reflector geometry.

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Author notes

  1. Song Xibin

    Present address: JVC Semiconductors Asia, Singapore, Singapore

  2. B. M. Russell

    Present address: Sungard Ltd., Oxford, UK

Authors and Affiliations

  1. Department of Electronics, University of York, York, YO105DD, UK

    E. A. Avrutin, Song Xibin & B. M. Russell

Authors
  1. E. A. Avrutin
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  2. Song Xibin
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  3. B. M. Russell
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Correspondence to E. A. Avrutin.

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Avrutin, E.A., Xibin, S. & Russell, B.M. Optical feedback tolerance of mode-locked laser diodes and some feedback reduction methods: a numerical investigation. Opt Quant Electron 40, 1175–1180 (2008). https://doi.org/10.1007/s11082-009-9304-3

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  • DOI: https://doi.org/10.1007/s11082-009-9304-3

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