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Monolithically integrated four-channel receiver array using diffused InGaAs (JFET technology)

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5 Author(s)
Mansfield, C. ; British Telecom Labs., Martlesham Heath, UK ; Newson, D.J. ; Birdsall, P. ; Young, R.
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Four-channel receiver arrays have been fabricated by monolithically integrating diffused InGaAs JFET-based electronics with InGaAs pin photodiodes. Cascode and simple inverter transimpedance amplifier circuits have been produced, both of which use a micro-FET as a tunable feedback element to vary bandwidth between 20 and 800 MHz. A sensitivity of -28.2 dBm was achieved at 1.25 Gbit/s with crosstalk between adjacent channels of -50 dB (electrical).

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Electronics Letters  (Volume:27 ,  Issue: 18 )