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High-performance monolithically integrated In/sub 0.53/Ga/sub 0.47/As/InP p-i-n /JFET optical receiver front-end with adaptive feedback control

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2 Author(s)
Blaser, M. ; Swiss Federal Inst. of Technol., Zurich, Switzerland ; Melchior, H.

An optical transimpedance receiver front-end that is adaptable to a wide range of bit-rates up to 3 Gb/s has been realized by monolithically integrating high efficiency p-i-n photodiodes with low noise InGaAs junction field effect transistors. The transimpedance-bandwidth product of the receiver is 2.8 THz Omega . The average equivalent input noise current for full circuit bandwidth is 4.0 pA/ square root Hz. The preamplifier for nonreturn to zero data transmission without equalization of the frequency response at 1.55 mu m offers a sensitivity of -41.5 dBm and -29.5 dBm at 140 Mb/s and 2.4 Gb/s, respectively. The dynamic range is 17 dB at 2.4 Gb/s and exceeds 30 dB at 500 Mb/s.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:4 ,  Issue: 11 )