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Topic Area: Optoelectronics
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Displaying records 41 to 50 of 71 records.
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41. Optical Performance Monitoring Using Artificial Neural Networks Trained with Parameters Derived from Delay-Tap Asynchronous Sampling
Topic: Optoelectronics
Published: 3/20/2009
Authors: Jeffrey A Jargon, Xiaoxia Wu, Alan Willner
Abstract: 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) using artificial neural networks trained with paramete ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33186

42. Optical fiber-coupled cryogenic radiometer with carbon nanotube absorber
Topic: Optoelectronics
Published: 4/1/2012
Authors: David J Livigni, Nathan A Tomlin, Christopher L Cromer, John H Lehman
Abstract: A cryogenic radiometer was constructed for direct-substitution optical fiber power measurements. The cavity is intended to operate at the 3 K temperature stage of a dilution refrigerator or 4.2 K stage of a liquid cryostat. The optical fiber is remov ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909507

43. Optical performance monitoring of (Q)PSK data channels using artificial neural networks trained with parameters derived from delay-tap asynchronous diagrams
Topic: Optoelectronics
Published: 2/15/2011
Authors: Jeffrey A Jargon, Xiaoxia Wu, Alan Willner, Loukas Paraschis
Abstract: We demonstrate a technique of using artificial neural networks trained with parameters derived from delay-tap asynchronous diagrams for optical performance monitoring of phase shift keying (PSK) data signals. We show that asynchronous diagrams from b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906680

44. Optical performance monitoring of PSK Data Channels using artificial neural networks trained with parameters derived from delay-tap asynchronous diagrams via balanced detection
Topic: Optoelectronics
Published: 9/20/2009
Authors: Jeffrey A Jargon, Xiaoxia Wu, Zhensheng Jia, Loukas Paraschis, Ronald Skoog, Alan Willner
Abstract: 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 wit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902574

45. Optical performance monitoring of QPSK data channels by use of neural networks trained with parameters derived from asynchronous constellation diagrams
Topic: Optoelectronics
Published: 3/1/2010
Authors: Jeffrey A Jargon, Xiaoxia Wu, Alan Willner
Abstract: We demonstrate a technique for optical performance monitoring of quadrature phase-shift keying (QPSK) data channels by simultaneously identifying optical signal-to-noise ratio (OSNR), chromatic dispersion (CD), and polarization-mode dispersion (PMD) ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904097

46. Optical performance monitoring using artificial neural networks trained with eye-diagram parameters
Topic: Optoelectronics
Published: 1/1/2009
Authors: Jeffrey A Jargon, Xiaoxia Wu, Alan Willner
Abstract: We developed artificial neural network models to simultaneously identify three separate impairments that can degrade optical channels, namely optical signal-to-noise ratio, chromatic dispersion, and polarization mode dispersion. The neural networks w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33016

47. Passive terahertz camera for standoff security screening
Topic: Optoelectronics
Published: 7/1/2010
Authors: Erich N Grossman, Charles Dietlein
Abstract: We describe the construction and performance of a passive, real-time terahertz camera based on a modular, 64-element linear array of cryogenic hotspot microbolometers. A reflective conical scanner sweeps out a 2 m ×4 m(vertical × horizontal) field of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905973

48. Photoconductive lifetimes of carbon nanotubes films
Topic: Optoelectronics
Published: 11/29/2007
Authors: Katie Hurst, Richard K. Ahrenkiel, Steve W. Johnston, Anne Dillon, Lara Roberson, John H Lehman
Abstract: The photoconductive recombination lifetimes of carbon nanotube (CNT) thin films as a function of wavelength are measured by resonant-coupled photoconductive decay (RCPCD) method (1). The carrier recombination lifetime is a fundamental property of car ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32818

49. Photon-number discrimination using a semiconductor quantum dot, optically gated, field-effect transistor
Topic: Optoelectronics
Published: 9/7/2007
Authors: Eric Gansen, Mary A. Rowe, M. Greene, Danna Rosenberg, Todd E Harvey, Mark Su, Sae Woo Nam, Richard P Mirin
Abstract: Detectors capable of resolving the number of photons in a pulse of light are important components for the advancement of quantum information technologies. We demonstrate photon-number discrimination using a novel single-photon detector that utilizes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32772

50. Precision Metrology for Fiber-Amplifier Noise Figure Traceable to a RIN Standard
Topic: Optoelectronics
Published: 8/16/2004
Authors: Gregory E Obarski, Paul D Hale
Abstract: We developed high-precision metrology for fiber-amplifier noise figure based on application of a relative intensity noise (RIN) standard to the RIN subtraction method. Calibration of a RIN/noise figure measurement system using the standard yields a t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=31621



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