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We present the first numerical investigation and comparison of 40-Gb/s lane rate electrical Duobinary, optical Duobinary and PAM-4 for NG-PONs incorporating low complex linear and nonlinear post-equalizations.
Optical datacommunication links are under active consideration at rates beyond 40 Gb/s, especially at 100 Gb/s. The development of solutions that are compatible with constraints such as low-bandwidth optical sources requires advanced modulation formats. This talk will concentrate on hybrid schemes, for example combining conventional PAM modulation with an orthogonal channel taken from a CAP system...
We demonstrate for the first time the feasibility of a 32×32 MZI-SOA hybrid switch by means of a re-circulating loop. A power penalty of less than 2.9dB at a data rate of 10Gb/s is obtained.
We propose a novel scheme by using two parallel Mach-Zehnder interferometers to monitor in-band OSNR. Simulation results show that OSNR range from 10 to 28dB within an error of ±0.5dB are successfully measured for different signals.
For the first time, simulations have been performed to evaluate and compare the link power budget and power dissipation of 100 Gb/s carrierless amplitude and phase modulation-16/64 (CAP-16/64) and 16/64-quadrature amplitude modulation-orthogonal frequency division multiplexing (16/64-QAM-OFDM) systems over feedforward error correction (FEC) enhanced single mode fiber (SMF) links using an 18.6 GHz...
Experimental investigations show, for the first time, that wavelength-offset optical filtering based on practical fiber Bragg grating (FBG) filters can improve the system optical power budget (OPB) by 1.4 dB at a total channel bit error rate of 1.0×10−3 in end-to-end real-time, directly modulated DFB laser-based 11.25Gb/s 25km single-mode fibre optical orthogonal frequency division multiplexing (OOFDM)...
Wavelength offset super Gaussian optical filters enable 7dB increases in optical power budget of 11.25Gb/s optical OFDM PON systems using directly modulated DFBs, considerably relax filter bandwidth requirement and improve performance robustness to bandwidth variation.
Recent real-time optical OFDM (OOFDM) research progress is reviewed extensively in terms of adaptive transceiver design, intensity modulators, synchronisation techniques and network architectures. Results indicate that OOFDM is feasible for mass deployment in PONs.
The use of 0.02nm bandwidth optical bandpass filters with 0.01nm wavelength offsets from optical carrier wavelengths in the optical OFDM (OOFDM) transmitter improves optical power budgets by 7dB at a total channel BER of 1×10-3 in directly modulated laser-based IMDD PON systems.
7.5Gb/s real-time end-to-end optical OFDM (OOFDM) transceivers incorporating variable power loading on each individual subcarrier are demonstrated experimentally, for the first time, using a live-optimized RSOA intensity modulator having a modulation bandwidth as narrow as 1GHz. Colourless real-time 16-QAM-encoded OOFDM signal transmission at 7.5Gb/s over 25km SSMF is achieved across the C-band in...
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