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http://dx.doi.org/10.1109/2944.640645

has been cited by the following article:

• TITLE: Threshold Characteristics Enhancement of a Single Mode 1.55 µm InGaAsP Photonic Crystal VCSEL for Optical Communication Systems

  AUTHORS: Abbas Majdabadi, Saeid Marjani, Masoud Sabaghi

  KEYWORDS: Threshold Characteristics, Single Mode, VCSEL, Optical Communication Systems

  JOURNAL NAME: Optics and Photonics Journal, Vol.4 No.10, October 23, 2014

  ABSTRACT: In the present work, we investigate threshold characteristics of a single mode 1.55 μm InGaAsP vertical cavity surface emitting laser (VCSEL) with two different optical confinement structures. The device employs InGaAsP active region, which is sandwiched between GaAs/AlGaAs and GaAs/AlAs distributed Bragg reflectors (DBRs). The optical confinement introduced by the oxide aperture or a single defect photonic crystal design with holes etched throughout the whole structure, is compared with previous work. Photonic crystal VCSEL shows 30.86% and 57.02% lower threshold current than that of the similar oxide confined VCSEL and previous results, respectively. This paper provides key results of the threshold characteristics, including the threshold current and the threshold power. Results suggest that, the 1.55 μm InGaAsP photonic crystal VCSEL seems to be the most optimal one for light sources in high performance optical communication systems.