RELATED APPLICATIONS

The present application is a National Phase of International Application No. PCT/JP2020/021305 filed May 29, 2020, and claims priority based on Japanese Patent Application No. 2019-105973 filed Jun. 6, 2019.

TECHNICAL FIELD

The present disclosure relates to optical power supply.

BACKGROUND ART

Recently, there has been studied an optical power supply system that converts electric power into light (called feed light), transmits the feed light, converts the feed light into electric energy, and uses the electric energy as electric power.

There is disclosed in Patent Literature 1 an optical communication device that includes: an optical transmitter that transmits signal light modulated with an electric signal and feed light for supplying electric power; an optical fiber including a core that transmits the signal light, a first cladding that is formed around the core, has a refractive index lower than that of the core, and transmits the feed light, and a second cladding that is formed around the first cladding, and has a refractive index lower than that of the first cladding; and an optical receiver that operates with electric power obtained by converting the feed light transmitted through the first cladding of the optical fiber, and converts the signal light transmitted through the core of the optical fiber into the electric signal.

CITATION LIST

Patent Literature

Patent Literature 1: JP 2010-135989 A

SUMMARY OF INVENTION

Problem to Solve

In optical power supply, transmission of higher energy light is expected.

If a connector is and keeps being disengaged by an unforeseen incident during installation or operation of a power over fiber system, it may lead to an accident caused by energy of feed light. Hence, connector disengagement needs to be found as soon as possible.

Solution to Problem

An optical connector of a power over fiber system according to an aspect of the present disclosure is an optical connector of a power over fiber system, including a shutter that opens in conjunction with a connection operation to enable the connection and closes in conjunction with a disconnection operation to block feed light from exiting, wherein a light receiving surface of the shutter, the light receiving surface receiving the feed light when the shutter is closed, is a mirror plane, and wherein the optical connector is disposed at a feed-light output end in the power over fiber system.

An optical connector of a power over fiber system according to an aspect of the present disclosure is an optical connector of a power over fiber system, including a shutter that opens in conjunction with a connection operation to enable the connection and closes in conjunction with a disconnection operation to block feed light from exiting, wherein a light receiving surface of the shutter, the light receiving surface receiving the feed light when the shutter is closed, is made of a wavelength conversion material, and wherein the optical connector is disposed at a feed-light output end in the power over fiber system.

