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Search Publications by: Jeffrey Jargon (Fed)

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Displaying 51 - 75 of 120

Optical performance monitoring of PSK Data Channels using artificial neural networks trained with parameters derived from delay-tap asynchronous diagrams via balanced detection

September 20, 2009
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Zhensheng Jia, Loukas Paraschis, Ronald Skoog, Alan Willner
We demonstrate a technique of using artificial neural networks for optical performance monitoring of PSK data signals. Parameters for training are derived from delay-tap asynchronous diagrams using balanced detection. We also compare the results with the

Applications of artificial neural networks in optical performance monitoring

August 15, 2009
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Ronald Skoog, Loukas Paraschis, Alan Willner
Applications using artificial neural networks (ANNs) for optical performance monitoring (OPM) are proposed and demonstrated. Simultaneous identification of optical signal-to-noise-ratio (OSNR), chromatic dispersion (CD), and polarization-mode-dispersion

A transmitter for calibrating the extinction ratio of optical receivers

March 20, 2009
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Paul D. Hale, Klaus M. Engenhardt, Alan Willner
We describe a transmitter being developed at the National Institute of Standards and Technology for calibrating extinction ratio measurements of optical receivers. Preliminary measurement results are presented, and major uncertainty components are

Synchronization monitoring of I/Q data and pulse carving misalignment for a parallel-type 20-Gb/s RZ-DQPSK transmitter by measuring RF clock tone/low frequency power

December 15, 2008
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Laurie Christian, Bo Zhang, Wei-Ren Peng, Jeng-Yuan Yang, Lin Zhang, Scott Nuccio, Loukas Paraschis, Alan Willner
We experimentally demonstrate a technique for monitoring the time misalignment of in-phase/quadrature (I/Q) data streams and pulse carver/data in a 20-Gb/s return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK) transmitter. By measuring the

A robust algorithm for eye-diagram analysis

November 1, 2008
Author(s)
Jeffrey A. Jargon, Paul D. Hale, Chih-Ming Wang
We present a new method for analyzing eye diagrams that always provides a unique solution by making use of a robust, least-median-of-squares (LMS) location estimator. In contrast to commonly used histogram techniques, the LMS procedure is insensitive to

Synchronization monitoring of I/Q data and pulse carving misalignment for a serial-type 80-Gb/s RZ-DQPSK transmitter through optical/RF clock tone measurement

August 4, 2008
Author(s)
Jeffrey A. Jargon, Xiaoxia Wu, Louis Christen, Scott Nuccio, Omer F. Yilmaz, Loukas Paraschis, Yannick K. Lize, Alan Willner
We experimentally demonstrate a monitoring technique for determining misalignment between the in-phase/ quadrature (I/Q) data streams and between the data and pulse carving in an 80 Gb/s serial-type return-to-zero differential quadrature phase-shift-keying

An Empirical Model for the Warm-Up Drift of a Commercial Harmonic Phase Standard

June 1, 2007
Author(s)
Jeffrey Jargon, Jolene Splett, Dominic F. Vecchia, Donald C. DeGroot
We develop an empirical model for the warm-up drift in a harmonic phase standard used to calibrate the phase distortion of a nonlinear vector network analyzer. The model enables us to estimate the time at which the standard reaches stability.

On Peculiarities of S-Parameter Measurements

June 17, 2005
Author(s)
Yves Rolain, Wendy Van Moer, Jeffrey Jargon, Donald C. DeGroot
Measured S-parameters are a key factor for many measurement/modeling applications. Experience teaches that quantities that are derived from the measurements can contain spikes, and that they tend to grow with connection imperfections. In this paper, a

Phase Noise Effects in Sampling Microwave Measurement Systems

June 17, 2005
Author(s)
Giovanni Loglio, Jeffrey Jargon, Donald C. DeGroot, Zoya Popovic
For the purpose of bounding sources of measurement uncertainty, we examine the effects of phase noise on measured wave-variables using sampling, downconvertor-based measurement systems. Utilizing an analytical description, we show that if the phase of the

A Phasor Angle Definition Suitable for Intermodulation Measurements

June 16, 2005
Author(s)
Giovanni Loglio, Jeffrey Jargon, Donald C. DeGroot
We describe a method for preserving time-invariant phase determination of non-harmonically related signals. In particular, signals lying in complex intermodulation spectra are considered. We provide simple examples to illustrate our technique, and show how

A Behavioral Model for Reducing the Complexity of Mixer Analysis and Design

May 11, 2005
Author(s)
Alessandro Cidronali, Giovanni Loglio, Jeffrey Jargon, Gianfranco Manes
This paper considers an approach for the behavioral modeling of the conversion mechanism in a nonlinear device suitable for the analysis of RF/microwave mixers. The core of the model consists of the conversion matrix of the nonlinear cell under

Modeling Warm-Up Drift in Commercial Harmonic Phase Standards

July 2, 2004
Author(s)
Jeffrey Jargon, Jolene Splett, Dominic F. Vecchia, Donald C. DeGroot
We develop an empirical model for the warm-up drift of harmonic phase standards that are used to calibrate the phase distortion of nonlinear vector nrtworks analyzers. This model will enable us to estimate the time at which the standards reach stability.

Non-Linear Large-Signal Scattering Parameters: Theory and Applications

June 11, 2004
Author(s)
Jeffrey Jargon, Kuldip Gupta, Donald C. DeGroot
We introduce nonlinear large-signal scattering parameters, a new type of frequency-domain mapping that relates incident and reflected signals for sparse-tone inputs. We present a general form of nonlinear large-signal scattering parameters and show that

Design and Characterization of a Superconducting Nonlinear Reference Device

December 5, 2003
Author(s)
James Booth, Kenneth Leong, Susan A. Schima, Jeffrey Jargon, Donald C. DeGroot
Abstract ' We describe the design, fabrication, and testing of a nonlinear reference device that has a calculable phase relationship between the fundamental signal and higher harmonic signals in the microwave range. Such a device would be useful for