Optical pulse time spreader and optical code division multiplex transmitter

Optical pulse time spreader and optical code division multiplex transmitter

  • CN 1,969,485 A
  • Filed: 12/21/2005
  • Published: 05/23/2007
  • Est. Priority Date: 01/12/2005
  • Status: Active Application
First Claim
Patent Images

1. optical pulse time spreader, adopt the light phase code to encode, export after light pulse is diffused as the chip pulse that is arranged in order along time shaft, the phase controller that this optical pulse time spreader has, when generating above-mentioned chip pulse sequence, make between the chip pulse adjacent in the code value that constitutes above-mentioned light phase code and produce phase difference;

  • This phase controller when above-mentioned two adjacent code values equate, makes above-mentioned phase difference be;



    M+(π

    /2)???????????????????????(1)When above-mentioned two adjacent code values are unequal, make above-mentioned phase difference be;



    M+(2N+1)π

    +(π

    /2)??????????????(2)Wherein, M and N are integers.

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