Cladding-Pumped Er/Yb-Co-Doped Fiber Amplifier for Multi-Channel Operation
, Sergejs Olonkins 3, Aleksejs Udalcovs 1, Ingars Lukosevics 4, Dmitrijs Prigunovs 1,3, Jurgis Grube 4, Liga Bikse 4, Andis Supe 1, Oskars Ozolins 1, Sandis Spolitis 1,2 and Vjaceslavs Bobrovs 1Round 1
Reviewer 1 Report
No comments
Reviewer 2 Report
In the manuscript 'Cladding-pumped Er/Yb Co-Doped Fiber Amplifier for Multi-Channel Operation,' the authors Zakis et al have done clear revising compared to the previous edition. The questions and confusions of the reviewers have been solved well. Based on this, I suggest the manuscript of current edition can be accept.
This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.
Round 1
Reviewer 1 Report
In the manuscript ' Cladding-pumped Er/Yb Co-Doped Fiber Amplifier for Multi-Channel Operation，' the authors Zakis et al reported their numerical and experimental research on the Er-Yb fiber amplifier system adopting cladding-pump structure. This manuscript can be accepted as the publication of Photonics after the following question is answered. In line 309-313, the authors are encouraged to consider the affect leading to the difference between the simulation and experiments. As the reabsorption will tend to saturation when the signal intensity is increase thus the reabsorption can not explain the difference in 2-m results. If the authors do believe the reabsorption can contribute to the difference, the authors should discuss more on that considering both the absorption spectrum of the Er-Yb fiber as shown in figure 4.
Reviewer 2 Report
The authors tackle the complex issue of fully characterizing and testing Erbium-Ytterbium co-doped amplifiers for their application in telecommunications, offering comparison to standard simulations and extracting information that could eventually lead to improved designs optimized for telecoms.
The results have interest to the community, the manuscript is well structured, adequately written and includes appropriate references.
I recommend publication after the following minor issues have been taken into account:
-Please carry out some checking of english to correct a few expressions (i.e. "configurations that can be when") and misuse of articles.
- Please add some comments regarding the potential advantages and disadvantages (in the context of telecommunications) of the studied Cladding-pumped EYDFA solutions in comparison to other established optical amplification approaches (EDFAs, Hybrid EDFA/Raman, Hybrid EDFA/SOA...) in a telecommunication context.
Reviewer 3 Report
See the attached.
Comments for author File: 
Comments.pdf
