US 12,392,980 B2
Optical communication device
Naoki Nishimura, Kyoto (JP); and Takao Sawa, Yokosuka (JP)
Assigned to SHIMADZU CORPORATION, Kyoto (JP); and JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, Yokosuka (JP)
Appl. No. 17/772,091
Filed by SHIMADZU CORPORATION, Kyoto (JP); and JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, Yokosuka (JP)
PCT Filed Dec. 5, 2019, PCT No. PCT/JP2019/047640
§ 371(c)(1), (2) Date Apr. 26, 2022,
PCT Pub. No. WO2021/090514, PCT Pub. Date May 14, 2021.
Claims priority of application No. PCT/JP2019/043896 (WO), filed on Nov. 8, 2019.
Prior Publication US 2022/0373760 A1, Nov. 24, 2022
Int. Cl. H04B 10/00 (2013.01); G02B 6/26 (2006.01); G02B 6/32 (2006.01); G02B 6/50 (2006.01)
CPC G02B 6/506 (2013.01) [G02B 6/262 (2013.01); G02B 6/32 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An optical communication device comprising:
a plurality of light-receiving elements configured to receive communication light, the plurality of light-receiving elements being provided so as to correspond to a plurality of channels; and
a plurality of optical fibers having a one to one correspondence for each of the light-receiving elements, configured to guide the communication light to the plurality of light-receiving elements, each of the plurality of optical fibers being provided so as to guide communication light to a corresponding one of the plurality of light-receiving elements,
wherein each optical fiber of the plurality of optical fibers includes a light-incident end portion for the communication light and a light-emission end portion for the communication light,
wherein each light-emission end portion of the plurality of light-emission end portions is arranged so as to face a light-receiving surface of a corresponding light-receiving element of the plurality of light-receiving elements,
wherein the plurality of the light-incident end portions is each configured to be capable of being arranged at a predetermined position in a predetermined direction, and
wherein the light-incident end portions is configured such that the communication light from a moving body that moves in water is incident on the light-incident end portion.