Title:
自由空間光通信システム、装置、及びそれらの方法
Document Type and Number:
Japanese Patent JP6998868
Kind Code:
B2
Abstract:
The present invention provides a free space optical communication system that uses orthogonal modes of aberration in a laser beam as means for encoding the information. The system comprises a transmission station which transmits the user defined information in terms of the amplitudes of certain orthogonal aberration modes present in the transmitted beam. The beam then travels through free space before it reaches the receiving station. The receiving station comprises a high speed wavefront sensor of light beams. The wavefront sensor measures the amplitudes of various orthogonal aberration modes present in the incident beam at different instants of time. The amplitudes of the orthogonal modes at a certain regular time interval are then used to extract the user information.
Inventors:
Borua Bosanta Ranjan
Conwar Santanu
Conwar Santanu
Application Number:
JP2018521725A
Publication Date:
January 18, 2022
Filing Date:
July 15, 2016
Export Citation:
Assignee:
The Secretary, Department of Electronics and Information Technology
Indian Institute of Technology Guwahati
Indian Institute of Technology Guwahati
International Classes:
H04B10/11; G01J9/00
Domestic Patent References:
| JP2001036471A | ||||
| JP2014530362A | ||||
| JP2005006063A |
Foreign References:
| WO2014196447A1 |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation
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