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An optoelectronic integrated circuit (OEIC) in a 0.35 μm BiCMOS technology is presented. The receiver designed for optical wireless communication and communication over plastic optical fibre for data rates up to 2 Gbit/s has a 200 μm diameter avalanche photodiode (APD). Thanks to a thick intrinsic zone the APD has a low capacitance of 0.5 pF. The chip requires a supply voltage of 3.3 V and has a current...
Chipshape-dependent bit error rate (BER) performance of direct sequence optical code division multiple access is analytically studied in fiber optic communication with cascaded in-line optical amplifiers in presence of group velocity dispersion. In our analysis, supper-Gaussian, and Hyperbolic-Secant shaped optical orthogonal codes are employed as address sequence. Avalanche photodiode is used in...
The bit-error-rate (BER) performance of an optically preamplified peak detecting burst mode (BM) receiver is analyzed. The analysis takes into account amplified spontaneous emission (ASE) noise and, for the first time with this receiver architecture, interchannel crosstalk. Furthermore, the ASE beat noises are more appropriately included through the use of a noncentral chi-square (NCCS) distribution...
This paper presents a new transimpedance amplifier (TIA) for 2.5 Gbit/s optical communications realized in a standard 90 nm CMOS process. The proposed TIA is based on a conventional structure with an inverting voltage amplifier and a feedback resistor, but incorporates a new technique to enhance the input dynamic range and to prevent the TIA saturation at high input currents. Post-layout results show...
We demonstrate a multiplier-free pre-decision phase recovery for optical coherent receivers. The complexity is much lower than previous mth power phase recovery, while simulation and experiment show that the performance is virtually same.
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