IEEE Photonics Technology Letters · 1994 · 69 citations · 8 references
Optical MaterialsEngineeringLaser ScienceLaser PhysicsLaser ApplicationsVertical-cavity Surface-emitting LasersSurface-emitting LasersHigh-power LasersOptical AmplifierOptical PropertiesLaser-based SensorOptical SystemsPhotonicsFeedback LevelsLaser DesignLaser-assisted DepositionAdvanced Laser ProcessingApplied PhysicsExternal Optical FeedbackSpectral CharacteristicsOptoelectronics
We report a study of the effects of external optical feedback on the threshold and spectral characteristics of VCSELs with feedback levels in the range from /spl minus/25 dB to 0 dB. A large threshold current reduction and multi-extended-cavity-mode operation have been observed. The experimental results are in good agreement with the theoretical calculations based on a compound cavity laser model.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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