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An analytical approach is represented to evaluate the bit error rate (BER) performance results of an optical CDMA (OCDMA) free space optical (FSO) communication system with receive diversity using multiple photodiode dual-detect Sequence Inverse Keying (SIK) receiver. The analysis is presented to find the expression for the signal current and multi access interference (MAI) current at the output of...
This letter reports an experimental demonstration of high-speed indoor optical wireless Optical multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) system with an imaging receiver. The system consists of a 2×1 array of white LEDs that transmit data to a 9 channel imaging receiver that uses a 3×3 photodetector array. A total transmission rate of 220Mbit/s at a BER...
We present a vertical-illumination-type 100% Ge-on-Si photodetector with the quantum efficiencies up to of 75.2% at λ~1.55 μm and 96.4% at λ~1.31 μm. The 10 Gbps photoreceiver with a fabricated 90 μm-diameter Ge photodetector exhibits the sensitivity of -18.5 dBm at a BER of 10-12 for λ~1.55 μm, which is comparable to that of III-V counterpart.
An optical-heterodyne-detection method for a 60-GHz radio-on-fiber uplink is proposed and verified in this paper. The main point of this proposal is that all the functions needed for the optical heterodyne detection, i.e., the local/carrier light sources, the automatic frequency control of these light sources, and a polarization-diversity-detection circuit, are consolidated in one transmitting-side...
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.
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