Title:
An optical transmission device and an optical transmission method
Document Type and Number:
Japanese Patent JP6058168
Kind Code:
B2
Abstract:
An object of this invention is to obtain an optical transmission apparatus and an optical transmission method with which a pair of phase-conjugate signals can be transmitted and synthesized on a reception side without a reduction in frequency utilization efficiency, thereby suppressing a reduction in transmission quality. In an optical transmission apparatus in which an optical emission unit and an optical reception unit are connected to each other via an optical transmission unit, the optical emission unit includes a signal arrangement unit that generates respective pairs of phase-conjugate signals of a plurality of systems on the basis of externally input signals of a plurality of systems, mixes together the pairs of phase-conjugate signals, and then arranges the pairs of phase-conjugate signals discretely in orthogonally polarized electric fields, and an optical modulation unit that converts electric signals from the signal arrangement unit into optical signals and outputs the optical signals to the optical transmission unit, and the optical reception unit includes a photoelectric conversion unit that converts the optical signals transmitted by the optical transmission unit into electric signals, and a signal reconstruction unit that reconstructs the original signals of the plurality of systems by synthesizing the intermixed and discretely arranged signals from the photoelectric conversion unit.
Inventors:
Takashi Yoshida
Application Number:
JP2015559694A
Publication Date:
January 11, 2017
Filing Date:
January 31, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04B10/2507
Domestic Patent References:
| JPH07301830A | 1995-11-14 | |||
| JPH07154324A | 1995-06-16 | |||
| JP2004004870A | 2004-01-08 | |||
| JP2008530962A | 2008-08-07 |
Foreign References:
| WO2013040004A1 | 2013-03-21 |
Other References:
JPN6016042734; Ｍｏｒｔｅｚａ Ｈ． Ｓｈｏｒｅｈ ｅｔ ａｌ．: '"Ｍａｔｈｅｍａｔｉｃａｌ Ｍｏｄｅｌｉｎｇ ｏｆ Ｎｏｎｌｉｎｉｅａｒｉｔｙ Ｉｍｐａｉｒｍｅｎｔｓ ｉｎ Ｏｐｔｉｃａｌ ＯＦＤＭ Ｃｏｍｍｕｎｉｃａｔｉｏｎ Ｓｙｓｔｅｍｓ Ｕｓｉｎｇ Ｍｕｌｔ' ２０１３ Ｉｒａｎ Ｗｏｒｋｓｈｏｐ ｏｎ Ｃｏｍｍｕｎｉｃａｔｉｏｎ ａｎｄ Ｉｎｆｏｒｍａｔｉｏｎ Ｔｈｅｏｒｙ （ＩＷＣＩＴ） , 201307
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura