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This paper presents, for the first time, a systematic approach to visible light communication (VLC) transceiver design based on an analytical optical wireless link budget study. To obtain the signal-to-noise ratio at the receiver, the received signal power is predicted by modeling the transmitted optical power and the channel path loss, while the input-referred noise is estimated by characterizing...
In this paper, we propose a structure of a multichannel downstream receiver supporting four downstream channel bonding in hybrid fiber coax (HFC) networks. In addition, we show the implementation and measurement results. The structure we prupose and implement consists of a radio frequency (RF) tuner and multichannel downstream receiver, which consists of a digital filter bank and four downstream demodulators...
We propose and demonstrate the optical multiband receiving method which supports transmission of a 16-QAM, 213.7-Gb/s (189.7-Gb/s) DDO-OFDM super-channel over 720-km SSMF. After transmission all the 9 OFDM bands exhibit BERs lower than the FEC threshold (BER = 3.8e-3).
The design and measurement of a high-speed optical receiver is presented. The intrisically low speed of a silicon photodiode is increased by a new photodiode structure which combines a high speed and a high responsivity. On top of this, an equalizer is used to increase the attainable bit rate even more. The receiver, existing from a photodiode, TIA, equalizer and post amplifier is integrated in a...
An optical receiver with integrated photodiode in 130 nm CMOS is presented. The extremely unfavourable optical and electrical performance of a differential photodiode in this technology, namely a very low responsivity of only 5 mA/W, an optical bandwidth of 500 MHz and a large photodiode capacitance of 1pF, have been solved so that bitrates of 4.5Gbit/s and higher can be received for BER values as...
This paper presents a novel CMOS current feed-back inductive buffered transimpedance amplifier (IB-TIA) stage using the IBM 130 nm 8M2P CMOS process technology. Using the novel inductive buffer technique a 10 GHz bandwidth was achieved with a transimpedance gain of ap 47 dBOmega without large gain peaking when compared to the inductive shunt peaking technique. In addition, the inductive buffer also...
InP/InGaAs waveguide avalanche photodiodes for 40 Gbit/s are demonstrated for the first time. The highest sensitivity of -19.0 dBm is achieved at BER of 10/sup -12/ in 40 Gbit/s PRBS 2/sup 31/- 1 NRZ signal.
Simulations and measurements at 40 Gbit/s show that RZ-DPSK is more robust to narrow-band optical filtering than on/off keying (OOK), in particular if balanced DPSK detection is employed
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