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High-speed, high-power and high-efficiency photodiodes with evanescently coupled graded-index waveguide

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4 Author(s)
Takeuchi, T. ; Opto-Electron. Device Res. Labs., NEC Corp., Ibaraki, Japan ; Nakata, T. ; Makita, K. ; Yamaguchi, M.

Evanescently coupled pin photodiodes with a high external efficiency of 0.71 A/W obtained as a result of the graded index configuration of the waveguide have been developed. A bandwidth of >40 GHz has been demonstrated up to an average photocurrent of 10 mA.

Published in:

Electronics Letters  (Volume:36 ,  Issue: 11 )