Title:
OPTICAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/158283
Kind Code:
A1
Abstract:
Provided is an optical transmission system which makes it possible to supply sufficient electrical power from a parent device to a child device via an optical transmission line. An optical transmission system (100) is provided with a parent device (10), a child device (20), and an optical transmission line (40). The parent device (10) is provided with optical transmitters (OS1 to OSn) for outputting main signal light, electrical power supplying light sources (LDn + 1 to LDm) for outputting electrical power supplying light separately from the main signal light, and a parent device optical amplifier (14) for amplifying the main signal light and the electrical power supplying light. A relay station device (30) transmits the main signal light and the electrical power supplying light from the parent device (10). The child device (20) handles the receiving of the main signal light by using the electrical power obtained by means of the photoelectric conversion of the electrical power supplying light.
Inventors:
SHIMIZU, Yoshihiro (17-3 Sakato 1-chome, Takatsu-ku, Kawasaki-sh, Kanagawa 86, 〒2138586, JP)
Application Number:
JP2010/003945
Publication Date:
December 22, 2011
Filing Date:
June 14, 2010
Export Citation:
Assignee:
FUJITSU TELECOM NETWORKS LIMITED (17-3, Sakato 1-chome Takatsu-ku, Kawasaki-sh, Kanagawa 86, 〒2138586, JP)
富士通テレコムネットワークス株式会社 (〒86 神奈川県川崎市高津区坂戸１丁目１７番３号 Kanagawa, 〒2138586, JP)
富士通テレコムネットワークス株式会社 (〒86 神奈川県川崎市高津区坂戸１丁目１７番３号 Kanagawa, 〒2138586, JP)
International Classes:
H04B10/02; H02J17/00
Attorney, Agent or Firm:
MORISHITA, Sakaki (2-11-12, Ebisu-Nishi Shibuya-k, Tokyo 21, 〒1500021, JP)
Claims: