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bidirectional circulator, ideal circulator and optical null.

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(joined October 2015)
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Dear,
What is bidirectional circulator and ideal circulator? what is its difference? and how its work? What is optical null?

Thank you,

San

Responses (2):

    • #27371
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      san lymit
      Participant

      Dear,
      What is bidirectional circulator and ideal circulator? what is its difference? and how its work? What is optical null?

      Thank you,

      San

    • #27374
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      alistu
      Participant

      Hi San,

      In the circulator, you can set the values for insertion loss, isolation and return loss, whereas in the ideal circulator, there is no return loss and isolation and you can set the value for insertion loss. An optical null simply creates a zero optical signal where is it used in the design.

      Regards

      +1
    • #27459
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      Shahbaz Qureshi
      Participant

      Hi San,

      Circulators are used to achieve Bi-directional transmission over a single fiber. It is 3 or 4 port device. It separates the signals travelling in opposite direction such that Signal entering port 1 will leave from the port 2. In case, a emitted light is reflected it will exit from another port i.e. port 3.

      However, the difference berween circulator, ideal circulator and optical null is very well explained by Alistu above.

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