Title:
空間光通信装置
Document Type and Number:
Japanese Patent JP7026300
Kind Code:
B2
Abstract:
To provide a spatial optical communication device that can automatically monitor a flying object and stop laser transmission.SOLUTION: A spatial optical communication device according to one embodiment of the present invention includes a transmission unit, a reception unit, a monitoring unit, a beam monitor, and a control unit. The transmission unit transmits a first laser beam to a spacecraft. The reception unit receives a second laser beam transmitted from the spacecraft. The monitoring unit monitors a flying object flying over the emission direction of the first laser beam. The beam monitor detects the emission direction from the transmission unit of the first laser beam. The control unit sets a first monitoring area that sections the surrounding of the first laser beam based on an output of the beam monitor, and when it is determined that the flying object has entered the first monitoring area based on an output of the monitoring unit, generates a control signal to stop transmission of the first laser beam.SELECTED DRAWING: Figure 1
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Inventors:
Tatsuya Mukai
Takayama Yoshihisa
Takayama Yoshihisa
Application Number:
JP2019142616A
Publication Date:
February 28, 2022
Filing Date:
August 01, 2019
Export Citation:
Assignee:
Japan Aerospace Exploration Agency
Tokai University
Tokai University
International Classes:
H04B10/118; H04B10/07
Domestic Patent References:
| JP2002335218A | ||||
| JP2005277810A | ||||
| JP2001264440A | ||||
| JP2007150455A | ||||
| JP2017526287A |
Foreign References:
| WO2017029808A1 |
Other References:
E. Ciaramella et al.,1.28 terabit/s (32x40 Gbit/s) wdm transmission system for free space optical communications,IEEE Journal on Selected Areas in Communications,IEEE,2009年12月01日,Volume: 27, Issue: 9,pages.1639-1645
Attorney, Agent or Firm:
Junichi Omori
Takahashi Mitsuru
Teppei Nakamura
Akira Orii
Sekine Masayoshi
Ayako Kaneko
Shintaro Kanayama
Ayako Chiba
Tomohisa Shiraka
Takahashi Mitsuru
Teppei Nakamura
Akira Orii
Sekine Masayoshi
Ayako Kaneko
Shintaro Kanayama
Ayako Chiba
Tomohisa Shiraka