Pixels Consisting of Double Vertical-Cavity Detector and Single Vertical-Cavity Laser Sections for 2-D Bidirectional Optical Interconnections

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Abstract
We have proposed a structure for optical pixels consisting of a double vertical-cavity detector and single vertical-cavity laser section. This pixel can be formed by simple fabrication processes because the structures of the detector and laser section are almost the same, and the characteristics of the laser and detector sections can be independently optimized by choosing the pair number of each distributed Bragg reflector. We have achieved a spectral bandwidth and peak absorptivity of the double vertical-cavity detector section about five times those of the single vertical-cavity laser section.