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Optical and electrical filters

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(joined January 2020)
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In a simulation sample (Dual Port MZ Modulator Measured.osd) there are two filters: an optical bessel passband filter and an electrical bessel low pass filter. Why is it necessary to use two filters?

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    • #69119
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      In a simulation sample (Dual Port MZ Modulator Measured.osd) there are two filters: an optical bessel passband filter and an electrical bessel low pass filter. Why is it necessary to use two filters?

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    • #69122
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      Ahmad Atieh
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      Dear Abigail,
      The first filter is optical to reduce ASE in the transmitted amplified signal and the other filter is electrical signal to get rid of high frequencies after detection.
      Regards,
      Ahmad

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    • #69123
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      Dear Ahmad,

      Thank you so much for your help and your time.

      Regards,
      Abigail

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