US 11,811,458 B2
Power sourcing equipment, powered device and power over fiber system
Shuichi Tamate, Hino (JP)
Assigned to KYOCERA CORPORATION, Kyoto (JP)
Appl. No. 17/620,067
Filed by KYOCERA CORPORATION, Kyoto (JP)
PCT Filed Jun. 19, 2020, PCT No. PCT/JP2020/024059
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2021/014845, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 2019-134234 (JP), filed on Jul. 22, 2019.
Prior Publication US 2022/0368426 A1, Nov. 17, 2022
Int. Cl. H04B 10/548 (2013.01); H04B 10/532 (2013.01)
CPC H04B 10/548 (2013.01) [H04B 10/532 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power sourcing equipment, comprising:
a laser oscillator configured to convert electric power into feed light; and
a modulator configured to modulate, based on transmission information, a phase of the feed light output from the laser oscillator, wherein the modulator includes a first modulator and a second modulator; and
an optical coupling part configured to merge a feed beam of the feed light in a first polarization state phase-modulated by the first modulator and a feed beam of the feed light in a second polarization state different from the first polarization state phase-modulated by the second modulator, thereby generating merged feed light, wherein
the laser oscillator is configured to output the feed light to the first modulator and the second modulator,
the feed light phase-modulated by the first modulator and the feed light phase-modulated by the second modulator are output to the optical coupling part, and
the merged feed light generated by the optical coupling part is output to outside of the power sourcing equipment.