Title:
OPTICAL RECEIVER
Document Type and Number:
Japanese Patent JPH08204633
Kind Code:
A
Abstract:
PURPOSE: To easily realize the improvement of a bit error probability by improving the quantization noise characteristic in a coherent optical communication system.
CONSTITUTION: The receiver 30 receiving an optical signal sent from a transmitter 10 is made up of a converter 32 comprising a nonlinear optical medium providing a prescribed optical conversion, and a homodyne detector 34 applying phase detection to the converted signal. The nonlinear optical medium includes at least one interaction process represented by products of three a+ or (a) or over when the interaction with an optical signal is represented by the Hamiltonian form, where a+ is a creation operator and (a) is an annihilation operator for an optical signal field.
Inventors:
USUDA TAKESHI
SASAKI MASAHIDE
HIROTA OSAMU
SASAKI MASAHIDE
HIROTA OSAMU
Application Number:
JP1458595A
Publication Date:
August 09, 1996
Filing Date:
January 31, 1995
Export Citation:
Assignee:
NIPPON KOKAN KK
HIROTA OSAMU
HIROTA OSAMU
International Classes:
H04B10/2507; G02F1/35; G02F2/00; H04B10/556; H04B10/58; (IPC1-7): H04B10/00; H04B10/02; H04B10/18
Attorney, Agent or Firm:
Hasegawa chord
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