Title:
SPATIAL OPTICAL COMMUNICATION SYSTEM, SPATIAL OPTICAL COMMUNICATION RECEIVER, AND SPATIAL OPTICAL COMMUNICATION RECEPTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/141854
Kind Code:
A1
Abstract:
Provided are a spatial optical receiver and a spatial optical communication method capable of expanding tolerance to tracking errors while suppressing the increase of a circuit size. This spatial optical communication receiver includes: a multimode fiber; a reception optical system that converges a signal light on the end surface of the multimode fiber; and a signal processing unit that reproduces, as a received signal, the signal light propagated through the multimode fiber, wherein the spot shape of the signal light converged by the reception optical system on the end surface of the multimode fiber is asymmetrical.
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Inventors:
ISHIKAWA TAKASHI (JP)
TAKAHASHI SEIGO (JP)
ITO TOSHIHARU (JP)
HOSOKAWA KOHEI (JP)
ONO YOSHIMASA (JP)
ARIKAWA MANABU (JP)
TAKAHASHI SEIGO (JP)
ITO TOSHIHARU (JP)
HOSOKAWA KOHEI (JP)
ONO YOSHIMASA (JP)
ARIKAWA MANABU (JP)
Application Number:
PCT/JP2017/005078
Publication Date:
August 24, 2017
Filing Date:
February 13, 2017
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/2581; H04B10/118; H04B10/60
Domestic Patent References:
| WO2014122909A1 | 2014-08-14 |
Foreign References:
| JP2002182074A | 2002-06-26 | |||
| JP2015230378A | 2015-12-21 |
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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