Direct-detection free-space optical communications link using 1 mu m wavelength laser diode transmitter

1993 ◽  
Vol 5 (2) ◽  
pp. 260-262 ◽  
Author(s):  
K.R. Baker ◽  
A.W. Yu ◽  
M.A. Krainak
Keyword(s):  
Laser Diode ◽  
Optical Communications ◽  
Free Space ◽  
Direct Detection ◽  
Free Space Optical

scholarly journals Free-space data-carrying bendable light communications

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Long Zhu ◽  
Andong Wang ◽  
Jian Wang
Keyword(s):  
Optical Communications ◽  
Free Space ◽  
Direct Detection ◽  
Line Of Sight ◽  
Optical Manipulation ◽  
Self Healing ◽  
Free Space Optical ◽  
Plasma Generation ◽  
Space Data ◽  
Light Beams

Abstract Bendable light beams have recently seen tremendous applications in optical manipulation, optical imaging, optical routing, micromachining, plasma generation and nonlinear optics. By exploiting curved light beams instead of traditional Gaussian beam for line-of-sight light communications, here we propose and demonstrate the viability of free-space data-carrying bendable light communications along arbitrary trajectories with multiple functionalities. By employing 39.06-Gbit/s 32-ary quadrature amplitude modulation (32-QAM) discrete multi-tone (DMT) signal, we demonstrate free-space bendable light intensity modulated direct detection (IM-DD) communication system under 3 different curved light paths. Moreover, we characterize multiple functionalities of free-space bendable light communications, including bypass obstructions transmission, self-healing transmission, self-broken trajectory transmission, and multi-receiver transmission. The observed results indicate that bendable light beams can make free-space optical communications more flexible, more robust and more multifunctional. The demonstrations may open a door to explore more special light beams enabling advanced free-space light communications with enhanced flexibility, robustness and functionality.

Collimation of laser diode beams for free space optical communications

2019 ◽  
Vol 102 ◽  
pp. 102996
Author(s):  
Jinna Ning ◽  
Wenrui Zhang ◽  
Changqing Cao ◽  
Zhejun Feng ◽  
Xiaodong Zeng ◽  
...  
Keyword(s):  
Laser Diode ◽  
Optical Communications ◽  
Free Space ◽  
Free Space Optical

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
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