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Beta 2 and Beta 3

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(joined April 2018)
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Hi everyone, I have a question that beta 2 value is 20 ps^2/km in 1550 nm window so what is the value of beta 3 in 1550 nm window for optical soliton? please reply

Responses (2):

    • #49795
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      Abu bakar
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      Hi everyone, I have a question that beta 2 value is 20 ps^2/km in 1550 nm window so what is the value of beta 3 in 1550 nm window for optical soliton? please reply

    • #49808

      Hi Abu bakar,
      dispersion is a parameter of the medium of propagation not for the propagating light.
      second order dispersion (or GVD), third order dispersion (TOD) or even higher order dispersions are for the optical fiber not for the soliton.
      TOD is the frequency dependence on the GVD. The dispersion properties are specified in units of fs3.
      all dispersion parameters are frequency dependant and also depend on the fiber compositions.
      in this link you can find values of GVD and TOD for different materials composition at different wavelength.

      https://www.newport.com/n/the-effect-of-dispersion-on-ultrashort-pulses

      Hope that helps you.
      Regards,
      Mohamed Abouseif

    • #49813
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      Abu bakar
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      ok thanks.

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