Title:
光通信システム、光受信器および波長変換器
Document Type and Number:
Japanese Patent JP3825319
Kind Code:
B2
Abstract:
An optical communication system transmits an optical signal from an optical sender to an optical receiver. A superimposed signal corresponding to a transmission speed of the optical signal is superimposed on the optical signal. At the optical receiver which receives the transmission light, the transmission speed is detected based on the superimposed signal included in the received light, and setting of a phase-lock loop circuit for extracting a clock signal is switched, to thereby perform a data decision processing of the received light. Thus, it becomes possible to receive and process optical signals at different transmission speeds by a single optical receiver, even when optical signals at the different transmission speeds are transmitted between the optical sender and the optical receiver.
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Inventors:
Akihiko Sugada
Kiyonaga Tetsuya
Kiyonaga Tetsuya
Application Number:
JP2001518954A
Publication Date:
September 27, 2006
Filing Date:
August 20, 1999
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04B10/61; H03L7/099; H03L7/10; H04B10/00; H04B10/07; H04B10/293; H04B10/40; H04B10/50; H04B10/516; H04B10/564; H04B10/572; H04B10/60; H04B10/67; H04B10/69
Domestic Patent References:
| JP10313277A | ||||
| JP10150417A | ||||
| JP4016038A | ||||
| JP8149000A | ||||
| JP62042633A | ||||
| JP5260116A | ||||
| JP5336581A |
Attorney, Agent or Firm:
Tomijio Sasashima