Home Forums KNOWLEDGE MZM Operation and Pulse Carving [Optical System]

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    • #10089
      Damian Marek
      Participant

      Question:

      I would like to simulate a commercial optical intensity modulator in OptiSystem. Which is the most suitable component to use and how does it function?

    • #10090
      Damian Marek
      Participant

      Answer:

      There are two simple options. The easy one would be using the Mach-Zehnder Modulator which you only need to define the Extinction ratio.

      The second option is using the LiNb Mach-Zehnder Modulator which is a more detailed model. Using this model, you can define the Insertion loss, Extinction ratio, Vπ voltage, etc.

      Since it is a dual driven device, the LiNb Mach-Zehnder Modulator can be setup to include settings for the bias voltages and the amplitudes of the modulation voltages at both arms, simply by checking the Normalize electrical signal box.

      In the attached file, I have provided three examples using the LiNb Mach-Zehnder Modulator to modulate optical signals. Each example is set to a different bias voltage to achieve different pulse carving characteristics. Instead of using the internal options of the modulator, I have provided external circuitry and an external bias to drive the modulator in push-pull mode.

      If the Absorption and Phase data is available, then it is easy to implement the Dual Port Dual Drive Mach-Zender Modulator Measured component.

    • #48760
      Suresh Sapkota
      Participant

      unable to open this attachment. Please help me.

    • #48788
      Fabrice MFUAMBA
      Participant

      Thank You so much

    • #66414
      Ninh Bui Trung
      Participant

      (Awaiting moderation)

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