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Journal articles

Intensity noise reduction using phase-amplitude coupling in a DFB diode laser

Abstract : We present a detailed investigation of the intensity and phase noise current dependence of a DFB laser diode emitting at 1.3 μm. Phase-amplitude correlations due to the linewidth enhancement factor α are taken into account. The phase to amplitude conversion is realized with a Michelson interferometer. We show that the phase–amplitude correlation is effective only just above threshold and that it goes to zero for increasing current as predicted theoretically by Karlsson and Björk. Our experimental results are well fitted by the standard quantum noise theory of semiconductor lasers providing an additional pumping noise is added.
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Contributor : Philippe Grangier Connect in order to contact the contributor
Submitted on : Monday, January 24, 2011 - 11:37:23 AM
Last modification on : Wednesday, September 16, 2020 - 5:43:36 PM


  • HAL Id : hal-00558822, version 1



Tiejun Chang, Jean-Philippe Poizat, Philippe Grangier. Intensity noise reduction using phase-amplitude coupling in a DFB diode laser. Optics Communications, Elsevier, 1998, 148, pp.180. ⟨hal-00558822⟩



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