Patent ID: 11888536
Assignee: KYOCERA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power over fiber system comprising:
a power sourcing equipment including a semiconductor laser that oscillates with electric power, thereby outputting feed light;
a powered device including a photoelectric conversion element that converts the feed light output by the power sourcing equipment into electric power;
an optical fiber cable that transmits the feed light from the power sourcing equipment to the powered device;
a power storage that stores the electric power into which the photoelectric conversion element has converted the feed light; and
a controller that performs a process of lowering an output level of the feed light in response to a value related to an electric power amount of the electric power stored in the power storage being equal to or higher than a predetermined threshold value, and performs a process of raising the output level of the feed light in response to the value related to the electric power amount being lower than the predetermined threshold value,
wherein the power over fiber system further comprises:
a first data communication device including the power sourcing equipment; and
a second data communication device including the powered device and performing optical communication with the first data communication device, and

wherein the controller includes:
a power-receiving-side controller that is included in the second data communication device and obtains electric power amount information on the electric power amount stored in the power storage; and
a power-supplying-side controller that is included in the first data communication device and performs a process of, in accordance with the electric power amount information obtained by the power-receiving-side controller, switching the output level of the feed light that is output by the semiconductor laser.