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Design and performance of an optoelectronic matrix switch using Si-p-i-n photodiodes

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3 Author(s)
Aida, K. ; Transmission Syst. Labs., NTT, Kanagawa, Japan ; Matsuno, K. ; Toyoshima, M.

Switching speed, isolation, optical-source requirements, and attainable matrix dimensions of an optoelectronic matrix switch using Si p-i-n photodiodes are discussed. By charging the internal capacitance of the diode with a photocurrent, forward bias voltages are attained that establish off-states. The novel features of the matrix switch are that the switch elements have high output impedance at off-states, and no electrical power is required to establish the off-states. This leads to advantages in fabricating large-dimension matrix switches

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Lightwave Technology, Journal of  (Volume:6 ,  Issue: 1 )