{
  "$type": "site.standard.document",
  "description": "In order to improve optical power feeding efficiency, this optical fiber power feeding system is provided with: a power feeding device 110 including a semiconductor laser 111 that performs laser oscillation by electric power and outputs power feeding light 112; a power receiving device 310…",
  "path": "/patents/1414741",
  "publishedAt": "2023-04-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01S5/042",
    "KYOCERA CORP [JP]"
  ],
  "textContent": "In order to improve optical power feeding efficiency, this optical fiber power feeding system is provided with: a power feeding device 110 including a semiconductor laser 111 that performs laser oscillation by electric power and outputs power feeding light 112; a power receiving device 310 including a photoelectric conversion element 311 that converts the power feeding light into electric power; an extension unit 360 that extends the wavelength of the power feeding light; a first optical fiber cable 280A for transmitting the power feeding light from the power feeding device to the extension unit; and a second optical fiber cable 290A for transmitting the power feeding light from the extension unit to the power receiving device. On the basis of the loss - transmission distance characteristic of a laser wavelength λ1 before the extension by the extension unit and the loss - transmission distance characteristic of a laser wavelength λ3 after the extension by the extension unit, the first optical fiber cable is configured to have a length less than or equal to a transmission distance L2 at which a loss of the laser wavelength before the extension becomes equal to a loss of the laser wavelength after the extension.",
  "title": "OPTICAL FIBER POWER FEEDING SYSTEM"
}