Evaluations of physical and optical path level hierarchical networks to implement optical fast circuit switching

2009 ◽  
Author(s):  
Takahiro Ogawa ◽  
Yoshiyuki Yamada ◽  
Hiroshi Hasegawa ◽  
Ken-ichi Sato
Keyword(s):  
Optical Path ◽  
Circuit Switching ◽  
Hierarchical Networks ◽  
Fast Circuit

Advances in optical path crossconnect systems using planar-lightwave circuit-switching technologies

2003 ◽  
Vol 41 (9) ◽  
pp. 54-57 ◽  
Author(s):  
S. Aisawa ◽  
A. Watanabe ◽  
T. Goh ◽  
Y. Takigawa ◽  
M. Koga ◽  
...  
Keyword(s):  
Optical Path ◽  
Circuit Switching ◽  
Planar Lightwave Circuit ◽  
Planar Lightwave

Optical Fast Circuit Switching Networks Employing Dynamic Waveband Tunnel

2012 ◽  
Vol E95.B (10) ◽  
pp. 3139-3148 ◽  
Author(s):  
Takahiro OGAWA ◽  
Hiroshi HASEGAWA ◽  
Ken-ichi SATO
Keyword(s):  
Circuit Switching ◽  
Switching Networks ◽  
Fast Circuit

Fast circuit switching for the next generation of high performance networks

1996 ◽  
Vol 14 (2) ◽  
pp. 298-305 ◽  
Author(s):  
C. Bohm ◽  
M. Hidell ◽  
P. Lindgren ◽  
L. Ramfelt ◽  
P. Sjodin
Keyword(s):  
High Performance ◽  
Circuit Switching ◽  
Next Generation ◽  
Fast Circuit

Hybrid Lighting Complex for Combined Lighting Systems Research Into Optical Path Optimization Using the Complex "Solar Led-S" New Modification

2018 ◽  
pp. 122-129
Author(s):  
Alexander T. Ovcharov ◽  
Yuri N. Selyanin ◽  
Yaroslav V. Antsupov
Keyword(s):  
Light Transmission ◽  
Optical Path ◽  
Artificial Light ◽  
Solar Panels ◽  
Shopping Centre ◽  
Systems Research ◽  
Lower Stage ◽  
Input Structure ◽  
Lighting Systems ◽  
Two Stages

A new concept of the architecture of hybrid lighting systems for installations of combined lighting is considered. The cascade principle of constructing the optical path of such complexes is described, in which the design contains two stages of the cascade: the upper and lower stages. The upper (input) structure is made on the basis of the corresponding modification of the hollow tube “Solatube®” (daylight), and the lower one, based on the “Solatube®” fibre of a larger diameter, is combined with LED artificial light block and is designed to transmit mixed light (daylight and artificial light). The results of studies on the efficiency of light transmission made it possible to optimize the solution of the new modification of the hybrid lighting complex “Solar LED”, lower stage of the cascade, and to develop the nomenclature of the production line “S”. The description of the first experience of using this complex in the pilot combined illumination system of the “meeting room” in the shopping centre “IKEA Belaya Dacha” headquarters is given. A completely autonomous power supply system for a lighting installation based on solar panels has been implemented.

Investigation of particulate systems using optical pathlength spectroscopy

2000 ◽  
Vol 627 ◽  
Author(s):  
Gabriel Popescu ◽  
Aristide Dogariu
Keyword(s):  
Path Length ◽  
Random Media ◽  
Michelson Interferometer ◽  
Industrial Process ◽  
Optical Path Length ◽  
Industrial Applications ◽  
Optical Path ◽  
Interference Signal ◽  
Optical Length ◽  
Reference Mirror

ABSTRACTIn many industrial applications involving granular media, knowledge about the structural transformations suffered during the industrial process is desirable. Optical techniques are noninvasive, fast, and versatile tools for monitoring such transformations. We have recently introduced optical path-length spectroscopy as a new technique for random media investigation. The principle of the method is to use a partially coherent source in a Michelson interferometer, where the fields from a reference mirror and the sample are combined to obtain an interference signal. When the system under investigation is a multiple-scattering medium, by tuning the optical length of the reference arm, the optical path-length probability density of light backscattered from the sample is obtained. This distribution carries information about the structural details of the medium. In the present paper, we apply the technique of optical path-length spectroscopy to investigate inhomogeneous distributions of particulate dielectrics such as ceramics and powders. The experiments are performed on suspensions of systems with different solid loads, as well as on powders and suspensions of particles with different sizes. We show that the methodology is highly sensitive to changes in volume concentration and particle size and, therefore, it can be successfully used for real-time monitoring. In addition, the technique is fiber optic-based and has all the advantages associated with the inherent versatility.

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