Polarization of λ=1.55 μm InGaAsP Ridge-Waveguide Lasers

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Abstract

The influence of waveguide parameters on the polarization of the lasing mode is investigated for λ=1.55 μm InGaAsP-InP ridge-waveguide lasers. It is found experimentally that for weak index guiding the lasers are polarized TM, whereas for gain guided or strongly index guided devices the polarization is TE. This behaviour is in excellent agreement with calculations based on a recently developed ridge-waveguide laser model. It is demonstrated that stable TE or TM polarization can arbitrarily be established by means of an appropriate choice of the laser parameters.

Original languageEnglish
Pages (from-to)L104-L106
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume27
Issue number1A
DOIs
StatePublished - Jan 1988
Externally publishedYes

Keywords

  • Gain-index guiding
  • InGaAsP-laser
  • Polarization
  • Ridge-waveguide
  • Waveguiding parameter

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