Optical communication network and component therefore

Optical communication network and component therefore

  • CN 1,934,807 B
  • Filed: 12/14/2004
  • Issued: 04/29/2015
  • Est. Priority Date: 12/23/2003
  • Status: Active Grant
First Claim
Patent Images

1. the parts (3,17) of an optical communication network, comprise source (6), for generation of communicate optical signal;

  • Laser instrument (8), for regenerating Optical Supervisory Channel;

    Output port (11), for outputting to the first optical delivery fiber (1) by communicate optical signal;

    Optical sensor (14;

         15);

    With light circulator (9), for the described communicate optical signal from described source (6) is transferred to described output port (11) and the light that reflects at described output port (11) of transmission or arrived described output port (11) by outside light to described optical sensor (14;

         15), it is characterized in that described optical sensor (14;

         15) there is coupled estimating circuit (13), for detection from the time mark of the communicate optical signal of described source (6) and the described optical sensor (14 of arrival;

         15) time delay between the corresponding time mark of light, wherein said optical sensor (14;

         15) selectively to the frequency sensitive of described Optical Supervisory Channel, andWherein said parts also comprise with become with described laser instrument (8) mode of specular be arranged in the second optical delivery fiber, for transmitting the device (8 '"'"') of detected delay value at described communication network, the transmission direction of described second optical delivery fiber is contrary with the transmission direction of described first optical delivery fiber, andWherein said parts also comprise photoswitch (16) and receiving unit (15), described receiving unit (15) is suitable for being connected to described first optical delivery fiber (1) selectively or being connected to described light circulator (9) as described optical sensor by described photoswitch, even if described photoswitch is also non-vanishing to the light transmittance of described receiving unit from described light circulator when described receiving unit is connected to described first optical delivery fiber by described photoswitch.

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