Open Access12‐Channel, 480 Gbit/s optical receiver analogue front‐end in 0.13 μm BiCMOS technology
Author(s) -
Chen Yingmei,
Li Jiquan,
Zhang Zhen,
Wang Hui,
Zhang Yunan
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.4653
Subject(s) - transimpedance amplifier , amplifier , pseudorandom binary sequence , jitter , electrical engineering , bicmos , gigabit , bandwidth (computing) , common gate , physics , electronic engineering , operational amplifier , materials science , cmos , engineering , transistor , telecommunications , binary number , voltage , mathematics , arithmetic
A compact 12‐channel 480 Gbit/s optical receiver analogue front‐end (AFE) for parallel optical transmission systems has been implemented in 0.13 μm SiGe BiCMOS technology. The transimpedance amplifier of AFE employed common‐gate amplifier and negative feedback structure to decrease input impedance and broaden bandwidth. The limiting amplifier adopted modified Cherry–Hooper amplifier with active feedback technique to stabilise current and acquire high gain simultaneously. Without on‐chip spiral inductors, the spacing of adjacent channels is constricted to 250 μm and the chip area is only 3350 × 700 μm. With the psuedo‐random binary sequence (PRBS) input data, the maximum operating rate of the AFE is 38.7 Gbit/s; meanwhile, the root mean square (RMS) jitter is 2.16 ps and the single‐ended output amplitude of 183.7 mV is achieved. The power consumption of each channel is 150 mW from a 3.3 V supply.