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31. Long distance optical frequency transfer over fiber: predicting the frequency stability from the fiber noise
Topic: Optoelectronics
Published: 5/18/2008
Authors: Nathan Reynolds Newbury, Paul A Williams, William C Swann
Abstract: We have recently demonstrated the coherent transfer of an optical signal over a 251 km link of optical fiber by use of the standard Doppler-cancellation approach to remove the effects of the fiber-link noise. The fundamental limit to the frequency in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32932

32. Low-frequency noise in gallium nitride nanowire mechanical resonators
Topic: Optoelectronics
Published: 12/7/2012
Authors: Jason Gray, Kristine A Bertness, Norman A Sanford, Charles T. Rogers
Abstract: We report on the low-frequency 1/f (flicker) parameter noise displayed by the resonance frequency and resistance of doubly clamped c-axis gallium nitride nanowire (NW) mechanical resonators. The resonators are electrostatically driven and their mech ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909950

33. Measuring optical waveforms with fiber frequency combs
Topic: Optoelectronics
Published: 1/5/2009
Authors: Ian R Coddington, William C Swann, Nathan Reynolds Newbury
Abstract: A stabilized frequency comb provides a broadband array of highly resolved comb lines. Using a multiheterodyne technique, we measure the amplitude and phase of every comb line, allowing for massively parallel, high-resolution optical sampling.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900153

34. NBS SPECIAL PUBLICATION 720: Technical Digest Symposium on Optical Fiber Measurements, 1986
Series: Special Publication (NIST SP)
Report Number: 720
Topic: Optoelectronics
Published: 1/1/1986
Authors: Igor Vayshenker, D. R. Hjelme, A. R. Mickelson
Abstract: When designing a multimode fiber system (MFS) one should take into consideration the mode-dependent properties of the components of the system. Lack of a design tool for fiber-optics netowrks makes the problem more difficult. However, one can describ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907348

35. 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

36. Optical fiber-coupled cryogenic radiometer with carbon nanotube absorber
Topic: Optoelectronics
Published: 4/1/2012
Authors: David J Livigni, Nathan Andrew 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

37. 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

38. 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

39. 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

40. 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