Title:
SPATIAL LIGHT RECEIVING DEVICE AND SPATIAL LIGHT RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/013188
Kind Code:
A1
Abstract:
Since in spatial light receiving devices, in order to improve coupling efficiency of receiving light and a fiber, the circuit scale of a signal processing circuit increases and cost increases due to the fact that signal processing becomes complicated, this spatial light receiving device has: a light collecting unit that collects laser light propagated in a spatial transmission path; a multimode transmission medium, to which the laser light is inputted, and from which multimode light is outputted; a multimode signal processing unit that outputs a plurality of reception electrical signals based on a part of the multimode light; a monitor unit that monitors signal information based on the multimode light; a control unit that controls operations of the multimode signal processing unit on the basis of the signal information; and a signal processing unit, which performs signal processing with respect to the reception electrical signals, and outputs an output signal formed by synthesizing the reception electrical signals.
Inventors:
TAKAHASHI SEIGO (JP)
ITO TOSHIHARU (JP)
HOSOKAWA KOHEI (JP)
ITO TOSHIHARU (JP)
HOSOKAWA KOHEI (JP)
Application Number:
PCT/JP2015/003609
Publication Date:
January 28, 2016
Filing Date:
July 17, 2015
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/112; H04B10/60
Domestic Patent References:
| WO2014086393A1 | 2014-06-12 |
Foreign References:
| JP2001298422A | 2001-10-26 | |||
| JP2013535871A | 2013-09-12 | |||
| JP2012160782A | 2012-08-23 |
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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