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Applications of Artificial Neural Networks in Optical Performance Monitoring
Simultaneous identification of accumulated fiber nonlinearity, OSNR, CD, and PMD causing changes from a baseline by use of the eye-diagram and eye-histogram parameters is obtained and high correlation coefficients are achieved with various baselines. Expand
Spectrally Efficient Direct-Detected OFDM Transmission Incorporating a Tunable Frequency Gap and an Iterative Detection Techniques
<para> We analytically and experimentally demonstrate a linearly field-modulated, direct-detected virtual single-sideband orthogonal frequency-division multiplexing (VSSB-OFDM) system that employs aExpand
Spectrally efficient direct-detected OFDM transmission employing an iterative estimation and cancellation technique.
By employing the iterative estimation and cancellation technique for the signal-signal beat interference at the receiver, the approach alleviates the need of the frequency gap, which is typically reserved for isolating the SSBI, and saves half the electrical bandwidth, thus being very spectrally efficient. Expand
Theoretical and Experimental Investigations of Direct-Detected RF-Tone-Assisted Optical OFDM Systems
In this paper, we propose and experimentally demonstrate a radio frequency (RF)-tone-assisted optical orthogonal frequency-division multiplexing (OFDM) transmission. By inserting an RF tone at theExpand
Photonic Generation of Ultra-Wideband Signals via Pulse Compression in a Highly Nonlinear Fiber
A simple and reconfigurable scheme for photonic generation of ultra-wideband (UWB) waveforms is proposed, simulated, and demonstrated. The technique relies on pulse compression in a highly nonlinearExpand
All-Optical Signal Processing for UltraHigh Speed Optical Systems and Networks
A brief overview of optical signal processing in high-speed optical systems and networks highlights a few key network functionalities, including optical logic operations, reconfigurable add/drop multiplexing, optical regeneration, wavelength conversion, format conversion, and phase-sensitive amplification. Expand
Optical performance monitoring of QPSK data channels by use of neural networks trained with parameters derived from asynchronous constellation diagrams.
We demonstrate a technique for performance monitoring of quadrature phase-shift keying data channels by simultaneously identifying optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), andExpand
Optical performance monitoring by use of artificial neural networks trained with parameters derived from delay-tap asynchronous sampling
We demonstrate a technique for optical performance monitoring by simultaneously identifying optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), and polarization mode dispersion (PMD)Expand
High-speed addition/subtraction/complement/doubling of quaternary numbers using optical nonlinearities and DQPSK signals.
This work demonstrates 50 Gbaud/s simultaneous quaternary addition, dual-directional subtraction, complement, and doubling in a single highly nonlinear fiber using optical nonlinearities and differential quadrature phase-shift keying signals. Expand
640 Gb/s All-Optical Regenerator Based on a Periodically Poled Lithium Niobate Waveguide
640 Gb/s all-optical ON-OFF keying signal regeneration based on nonlinearities in a periodically poled lithium niobate (PPLN) waveguide is demonstrated and characterized. The data are transferredExpand