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Wide bandwidth low noise pinFET receiver for high-bit-rate optical preamplifier applications

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2 Author(s)
Tzeng, L.D. ; AT&T Bell Labs., Allentown, PA ; Frahm, R.E.

A wide bandwidth low noise pinFET receiver has been fabricated and characterised for optical preamplifier applications. The receiver uses a low capacitance planar pin diode as the photodetector. A bandwidth of 7.08 GHz was measured. The measured input noise current for the receiver front-end is lower than 12 pA/√(f). Using a 1.3 μm DFB laser as the transmitter, at a data rate of 4 Gbit/s, the measured receiver sensitivity is -25.5 dBm with a bit-error-rate of 1×10 -9. A set of two of such receivers has also been tested in a 1.3 μm polarisation-insensitive optical preamplifier system experiment. The measured receiver sensitivity, including an optical insertion loss of 1.5 dB, is -29.3 dBm

Published in:

Electronics Letters  (Volume:24 ,  Issue: 18 )