A. Knights, P. Jessop, D. Bruce, D. Logan, B. Luff, D. Zheng, R. Shafiiha, M. Asghari
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Monitoring infrared light using a commercial variable optical attenuator subjected to defect engineering
The fabrication of silicon-waveguide power monitors via the introduction of defects to commercially produced variable optical attenuators is demonstrated. Devices show an effective quantum efficiency of ~1% for a tapped fraction of signal of 30%.