Demonstration of 100 GBIT/S active measurements in dynamically provisioned optical paths

2019 ◽  
Author(s):  
J.E. López de Vergara ◽  
M. Ruiz ◽  
L. Gifre ◽  
M. Ruiz ◽  
L. Vaquero ◽  
...  
Keyword(s):  
Active Measurements ◽  
Optical Paths

Inter-Method Reliability of Pulse Volume Related Measures Derived Using Finger-Photoplethysmography

2018 ◽  
Vol 32 (4) ◽  
pp. 182-190 ◽  
Author(s):  
Kenta Matsumura ◽  
Koichi Shimizu ◽  
Peter Rolfe ◽  
Masanori Kakimoto ◽  
Takehiro Yamakoshi
Keyword(s):  
Light Intensity ◽  
Adverse Effects ◽  
Light Source ◽  
Direct Current ◽  
Resting State ◽  
Current Component ◽  
Psychophysiological Measures ◽  
Pulse Volume ◽  
Optical Paths ◽  
Sensor Positions

Abstract. Pulse volume (PV) and its related measures, such as modified normalized pulse volume (mNPV), direct-current component (DC), and pulse rate (PR), derived from the finger-photoplethysmogram (FPPG), are useful psychophysiological measures. Although considerable uncertainties exist in finger-photoplethysmography, little is known about the extent of the adverse effects on the measures. In this study, we therefore examined the inter-method reliability of each index across sensor positions and light intensities, which are major disturbance factors of FPPG. From the tips of the index fingers of 12 participants in a resting state, three simultaneous FPPGs having overlapping optical paths were recorded, with their light intensity being changed in three steps. The analysis revealed that the minimum values of three coefficients of Cronbach’s α for ln PV, ln mNPV, ln DC, and PR across positions were .948, .850, .922, and 1.000, respectively, and that those across intensities were .774, .985, .485, and .998, respectively. These findings suggest that ln mNPV and PR can be used for psychophysiological studies irrespective of minor differences in sensor attachment positions and light source intensity, whereas and ln DC can also be used for such studies but under the condition of light intensity being fixed.

Maximum Optical Paths

Nature ◽  
1934 ◽  
Vol 133 (3370) ◽  
pp. 830-831 ◽  
Author(s):  
T. SMITH
Keyword(s):  
Optical Paths

scholarly journals On routing of wavebands for all-to-all communications in all-optical paths and cycles

2005 ◽  
Vol 333 (3) ◽  
pp. 401-413 ◽  
Author(s):  
Michele Flammini ◽  
Alfredo Navarra ◽  
Andrzej Proskurowski
Keyword(s):  
All Optical ◽  
Optical Paths

Active measurements of antenna diversity performances using a specific test-bed, in several environments

2010 ◽  
Vol 20 (3) ◽  
pp. 264-271 ◽  
Author(s):  
Moctar Mouhamadou ◽  
Charles A. Tounou ◽  
Cyril Decroze ◽  
David Carsenat ◽  
Thierry Monediere
Keyword(s):  
Antenna Diversity ◽  
Test Bed ◽  
Specific Test ◽  
Active Measurements

Radiation properties of water vapor in IR range for the thermodynamically inhomogeneous optical paths

2006 ◽  
Author(s):  
Olga K. Voitsekhovskaya ◽  
Victor N. Cherepanov ◽  
Alexander Yu. Zaprjagaev ◽  
Zlata A. Voitsekhovskaya
Keyword(s):  
Water Vapor ◽  
Radiation Properties ◽  
Optical Paths

Outage Dynamics of 40Gb/s Optical Paths Routed over PMD-Impaired Fiber Links

2008 ◽  
Author(s):  
Henning Bulow ◽  
Jozef Dubovan ◽  
Reinhold Herschel
Keyword(s):  
Fiber Links ◽  
Optical Paths

Hop-by-hop versus end-to-end active measurements

2002 ◽  
Vol 25 (10) ◽  
pp. 954-963 ◽  
Author(s):  
D.D Luong ◽  
J Bı́ró
Keyword(s):  
Active Measurements ◽  
End To End
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