Multiphysics Coupling Simulation of Off-Axis Integrated Cavity Optical Sensing System

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

1. In the current COMSOL simulation, mesh partitioning is crucial for the accuracy of the simulation results. The author has provided insufficient description of this aspect in the article. It is recommended that the author supplement the relevant content to improve the accuracy of the simulation results.

 

2. The font format in Figures 2 and 9 is incorrect. It is recommended that the author carefully review and correct it. Additionally, what is the horizontal axis in Figure 9?

 

3. The authors concluded that under different temperature conditions, the image quality at the optimal focal plane changes with temperature. How can the impact of temperature on image quality be eliminated?

 

4. The choice of material properties has a significant impact on the simulation results. It is recommended that the author provide detailed properties of the materials used in the article and explain the basis for their selection.

 

5. In multiphysics coupling simulations, the temperature settings have a significant impact on the results. It is recommended that the author provide a detailed explanation of the interface temperature setting methods and their impact on the simulation results.

Comments on the Quality of English Language

Minor editing of English language required.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

Comments and Suggestions for Authors

General comments

 

The paper entitled “Multiphysics Coupling Simulation of Off-axis Integrated Cav-ity Optical Sensing System” by Xing Tian et al. utilized COMSOL multiphysics to perform a multiphysics simulation of an off-axis integrated cavity optical sensing system, examining the impacts of structural and thermal deformations. By analyzing the effects of different temperature conditions on the stress and displacement fields and optimizing the optical path, the research provides a theoretical basis for future system enhancements. The article holds significant scientific value and offers positive contributions to advancing the field, but some details need to be modified. Details as follows:

 

(1) The logic and written expression of the manuscript

1. Is there a missing w in the text description below formula (2)?

2. This is a scientific paper, so the descriptions provided need to be quantitative. For example, in lines 175-187, instead of stating "causing the stress to increase again," please specify the exact value of the stress increase. Here is the description of Section 4.1, Stress Analysis. Please also note similar issues in Sections 4.2 and Sections 4.4 .

3. In lines 216-218 of the article, the description "The surface deformation of the mirror causes changes in the optical propagation of the system under different temperature conditions, ultimately affecting the imaging quality of the optical system" should quantitatively specify "affecting the imaging quality."

 (2) Figures and tables

1. Please revise Figure 1 in the article. In scientific papers, flowcharts typically use different shapes to represent start and end points versus intermediate steps. Specifically:

1)Start and End: Usually represented by rounded rectangles or ovals.

2)Intermediate Steps or Processes: Typically represented by rectangles with straight corners.

This standard convention helps make the flowchart clearer and more readable, allowing readers to quickly understand the logic and flow of the diagram.

2. Please provide scales for Figures 2 and 3 so that readers can intuitively feel the size of the cavity.

3. In Figure 4, the pseudocolor representation can be improved by clearly separating the colors in the two pseudocolor scales, as demonstrated in Figure 5. This will enhance reader comprehension.

(3) Scientific of the manuscript

1. In lines 129-132 of the article, it is written that "The model also includes a hexagonal ring-shaped grid light source, with its central position, cylindrical axis, and radius adjustable according to the model requirements to control the position, direction, and size of the incident rays." Please briefly explain why the author chose "hexagonal ring-shaped grid light source" or provide relevant references

2. In lines 123-124, the article mentions that the light source was "set to a single wavelength." However, the specifics of the light source are crucial for the simulation results. Please provide detailed information on the wavelength, frequency, and field intensity distribution in the article.

3. The article could benefit from citing more references to demonstrate the impact of temperature on optical systems. This would further highlight the significance and innovation of the research.

 

 

 

 

Comments on the Quality of English Language

The overall English description of the article is adequate, but it would be better if the author could have it further polished and revised by a native English speaker.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 3 Report

Comments and Suggestions for Authors

Tian et al. conducted a finite element analysis to numerically simulate the OA-ICOS system. Utilizing COMSOL Multiphysics, the simulation intricately coupled geometric optics, solid mechanics, and solid heat transfer while executing parametric temperature scanning. This multiphysics approach lays a solid theoretical foundation for the optimization of the OA-ICOS system and presents insights for future optical design endeavors. I would agree to the publication of this article in Photonics, contingent upon minor revisions.

i. The introduction does not sufficiently detail the works of the OA-ICOS. It is recommended to enrich this section with more citations.

ii. Why did the authors select stainless steel as the primary material for the off-axis integrated cavity? What are the benefits and reasons behind this choice?

iii. How did the authors approach mesh partitioning for the entire model in the article? What advantages does this method offer?

iv. In Figure 9, what units are used on the horizontal axis? It is recommended that the authors clarify and enhance this detail in Figure 9.

v. Are the lenses in direct contact with the cavity, or is there an elastic medium involved?

vi. The authors have employed multiphysics coupling simulations; however, the methods used to couple the different physical fields could be further optimized to enhance both the accuracy of the simulations and their computational efficiency.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

The authors have made the mandatory revisions and now can be accepted for publication.

Reviewer 2 Report

Comments and Suggestions for Authors

Recommendation: Accept for publication.

Comments on the Quality of English Language

The quality of the English language in this manuscript is good.