Indoor communications networks realized through hybrid free-space optical and wifi links

2018 ◽  
Author(s):  
Alan X. Wang ◽  
Spencer Liverman ◽  
Qiwei Wang ◽  
Anindita Borah ◽  
Yu-Jung Chu ◽  
...  
Keyword(s):  
Free Space ◽  
Free Space Optical ◽  
Communications Networks ◽  
Indoor Communications

scholarly journals Free-space optical delay line using space-time wave packets

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Murat Yessenov ◽  
Basanta Bhaduri ◽  
Peter J. Delfyett ◽  
Ayman F. Abouraddy
Keyword(s):  
Free Space ◽  
Delay Line ◽  
Wave Packets ◽  
Space Time ◽  
Free Space Optical ◽  
Optical Delay Line ◽  
Communications Networks ◽  
Optical Delay ◽  
All Optical ◽  
Spatio Temporal

AbstractAn optical buffer featuring a large delay-bandwidth-product—a critical component for future all-optical communications networks—remains elusive. Central to its realization is a controllable inline optical delay line, previously accomplished via engineered dispersion in optical materials or photonic structures constrained by a low delay-bandwidth product. Here we show that space-time wave packets whose group velocity is continuously tunable in free space provide a versatile platform for constructing inline optical delay lines. By spatio-temporal spectral-phase-modulation, wave packets in the same or in different spectral windows that initially overlap in space and time subsequently separate by multiple pulse widths upon free propagation by virtue of their different group velocities. Delay-bandwidth products of  ~100 for pulses of width  ~1 ps are observed, with no fundamental limit on the system bandwidth.

Experimental Investigation on a Radio-on-free-space Optical System Suitable for Provision of Ubiquitous Wireless Services

PIERS Online ◽  
2010 ◽  
Vol 6 (5) ◽  
pp. 400-405 ◽  
Author(s):  
Mitsuji Matsumoto ◽  
Kamugisha Kazaura ◽  
Kazuhiko Wakamori ◽  
Takeshi Higashino ◽  
Katsutoshi Tsukamoto ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Optical System ◽  
Free Space ◽  
Free Space Optical ◽  
Wireless Services

Channel Characterization for Free-Space Optical Communications

2012 ◽  
Author(s):  
L. C. Andrews ◽  
R. L. Phillips ◽  
R. Crabbs ◽  
T. Leclerc ◽  
P. Sauer
Keyword(s):  
Optical Communications ◽  
Free Space ◽  
Free Space Optical ◽  
Channel Characterization
Sign in / Sign up

Export Citation Format

Share Document