Home Forums SYSTEM Single Photon Source

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    • #21630
      Taiwo Ambali Abiola
      Participant

      Dear all,
      How can I model a single photon source or by how much can we attenuate a Pulse laser/CW laser source to presume one is having a single photon source using optisystem. I am actually simulating a QKD system. If there is any application you think is much more suitable for QKD (Quantum key distribution), kindly help with information. Thanks all

    • #21631
      Alessandro Festa
      Participant

      I am not sure that Optiwave signal rapresentation allows for “single photon” transmitters. Someone from Optiwave support can surely help you about this topic.

    • #21647
      Taiwo Ambali Abiola
      Participant

      Thanks alot Alessandro Festa. I hope features like this would be included in the later version.

      I also observe I could not get adjustable ratio power splitter or combiner. The available one is 50/50 by default.

      • #21713
        Damian Marek
        Participant

        Taiwo,

        OptiSystem signals are represented by intensities and not number of particles. In a sense, it is like a classical approach which would not work if the number of photons or power were to become very small. That is to say quantum key distribution networks are out of the scope of the OptiSystem simulation tool.

        Regards

      • #21716
        Alessandro Festa
        Participant

        You are welcome. You can use an X coupler if you need to do something different from 50/50.

    • #21652
      Ajay Vyas
      Participant

      May be possible this feature for upcoming version.
      Can we use filter to get a single photon source on design in MATLAB to generate a single source from the laser Data.
      May be I am wrong.

    • #21715
      Taiwo Ambali Abiola
      Participant

      Thank you so much Marek for enlightening me more on this

    • #21736
      Ravil
      Participant

      Hi Taiwo,

      according to your question about the opportunity of single photon source implementation, I agree with Ajay: Matlab will be the most viable option. If I am not mistaken, it was implemented using Quantum Optics Toolbox in
      Tan, S. “A computational toolbox for quantum and atomic optics”. Journal of Optics B: Quantum and Semiclassical Optics 1, 424 (1999)

    • #21737
      Taiwo Ambali Abiola
      Participant

      Thanks both Ravil and Ajay. I will check for the said publication

    • #21771
      Ravil
      Participant

      You are welcome, Taiwo! I hope that my recommendation will give you some guidance. Good luck with your future work and research!

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