Epoxy-Coated Side-Polished Fiber-Optic Temperature Sensor for Cryogenic Conditions
Round 1
Reviewer 1 Report
Attached
Comments for author File: 
Comments.pdf
Author Response
Dear reviewer,
We deeply appreciate your valuable comments.
We have tried our best to comply with them, which we believe has made our manuscript enhance its quality and readability substantially.
Please see the attachment which contains the answers and corrections to your comments.
We hope these changes have satisfied your concerns.
Best wishes,
Authors
Author Response File: Author Response.pdf
Reviewer 2 Report
Please see attached PDF
Comments for author File: Comments.pdf
Author Response
Dear reviewer,
We deeply appreciate your valuable comments.
We have tried our best to comply with them, which we believe has made our manuscript enhance its quality and readability substantially.
Please see the attachment which contains the answers and corrections to your comments.
We hope these changes have satisfied your concerns.
Best wishes,
Authors
Author Response File: Author Response.pdf
Reviewer 3 Report
This paper demonstrated a side-polished optical fiber (SPF) with epoxy polymer to form a fiber-optic sensor. I have the following comments regarding revision and subsequent improvement：
1. Although there is a theoretical analysis of thermo-optical coefficient in Section 2, however, the factors affecting the sensitivity of the sensor have not been revealed quantitatively .
2. How repeatable is it to make this sensor?
3. It is suggested to increase the contrast with other methods.
4. Spelling mistake is found in legend of Figure 3.
Author Response
Dear reviewer,
We deeply appreciate your valuable comments.
We have tried our best to comply with them, which we believe has made our manuscript enhance its quality and readability substantially.
Please see the attachment which contains the answers and corrections to your comments.
We hope these changes have satisfied your concerns.
Best wishes,
Authors
Author Response File: Author Response.pdf
Reviewer 4 Report
In this manuscript, authors demonstrated an optical fiber cryogenic temperature sensor based on an epoxy-coated side-polished fiber. The study is useful in the cryogenic conditions. I enjoyed reading the manuscript because it is clear, well-structured. But I don't think it is suitable for publishing in journals. The structural design of the sensor is very simple and has no novelty. It is actually a D-type optical fiber, and then the D-type position is coated with epoxy. And also, there are no experimental results of resolution and measurement accuracy tests. In addition, the properties of epoxy are not described.
Author Response
Dear reviewer,
We deeply appreciate your valuable comments.
We have tried our best to comply with them, which we believe has made our manuscript enhance its quality and readability substantially.
Please see the attachment which contains the answers and corrections to your comments.
We hope these changes have satisfied your concerns.
Best wishes,
Authors
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
The authors have addressed the reviewer's comments. I understand the answers to the previously raised points, but I don't understand whether they have been actually implemented in the text or not, because the reply of authors does not indicate explicitly any reference to text modifications (usually, replies to reviewers include an answer AND the modified parts of the text). In the future, for the benefit of the reviewers, please provide details of text modifications (modified sentences, lines, page...).
Reviewer 3 Report
Author has responsed the comments.
Reviewer 4 Report
In my opinion, FBG-based sensors with epoxy may have a simpler structure and preparation process. What are their advantages and disadvantages?
