Research on Orbital Angular Momentum Multiplexing Communication System Based on Neural Network Inversion of Phase

Round 1

Reviewer 1 Report

Thank you for your interesting work.

I have some comments that have to be considered in the modified manuscript.

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1] Equations (1) and (2) need references.

2] Table 1 needs a reference or justify why you worked with these specific values.

3] Table 2 shows values at different turbulence intensities. Do you mean the ratio (D/r)? Clarify.

4] Also, Fig. 7 shows results at different turbulence intensities, but these intensities are not mentioned in this figure.

5] Table 3 needs adding a column showing the percentage enhancement when using more advanced models (step by step).

6] Figure 3. Structure diagram of hybrid attention. You mean hybrid that it is a combination between SA and CA mechanisms?

7] In Fig. 5 (legend), you use (val).... what is (val). Also, you use (acc).... is it the accuracy.... please clarify.

8] In Fig. 8, the word (none) means that you did not use any compensation method. Correct????

9] For Figures 8+9+10, use colors or use more clearer symbols.

Author Response

      Thank you very much for your review of the article " Research on Orbital Angular Momentum Multiplexing Communication System Based on Neural Network Inversion of Phase ". I have answered the questions raised by the reviewers in detail and made detailed modifications to the paper according to the opinions of the reviewers.

Please see the attachment for details.

Author Response File: Author Response.pdf

Reviewer 2 Report

The authors have investigated a residual attention network based adaptive optical wavefront recovery to improve the performance of the orbital angular momentum free-space communication system affected by atmospheric turbulence. Numerical simulations have been carried out for different atmospheric turbulence intensity conditions. Analyses and discussions are interesting and helpful for next-generation free-space communication systems. This paper can be published in Electronics, provided following issues can be addressed.

 

1. Some abbreviations should be clarified when they appear for the first time.
2. The language can be double-checked and improved.
3. Add some discussion regarding the FEC threshold which has to be considered in the studied system.
4. Add more discussion regarding the practical applications of OAM, compared to other optical wireless communication systems

See e.g.

W Hu et al., High-dimensional feature based non-coherent detection for multi-intensity modulated ultraviolet communications, Journal of Lightwave Technology, 2022.

J Wang et al., Orbital angular momentum and beyond in free-space optical communications, Nanophotonics, 2022.

Author Response

          Thank you very much for your review of the article " Research on Orbital Angular Momentum Multiplexing Communication System Based on Neural Network Inversion of Phase ". I have answered the questions raised by the reviewers in detail and made detailed modifications to the paper according to the opinions of the reviewers.

Please see the attachment for details.

Author Response File: Author Response.pdf