Next Article in Journal
Design and Experiment of an Ultrasound-Assisted Corneal Trephination System
Previous Article in Journal
Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna
Previous Article in Special Issue
Focus on the Avalanche Breakdown Characteristic of Si- and InP-Based APDs Irradiated by Fast Neutrons
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Micromachines
Volume 14
Issue 2
10.3390/mi14020437
Review Report
micromachines-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
Article
Peer-Review Record

Free-Running Single-Photon Detection via GHz Gated InGaAs/InP APD for High Time Resolution and Count Rate up to 500 Mcount/s

Micromachines 2023, 14(2), 437; https://doi.org/10.3390/mi14020437
by Wen Wu 1, Xiao Shan 1, Yaoqiang Long 1, Jing Ma 1, Kun Huang 2, Ming Yan 2, Yan Liang 1,* and Heping Zeng 2,3,4
Reviewer 1:
Mark Farries
Reviewer 2:
Wenkai Lou
Micromachines 2023, 14(2), 437; https://doi.org/10.3390/mi14020437
Submission received: 28 December 2022 / Revised: 4 February 2023 / Accepted: 10 February 2023 / Published: 12 February 2023
(This article belongs to the Special Issue III-V Compound Semiconductor Based Photodetectors and Their Applications)

Round 1

Reviewer 1 Report

This work is interesting, timely and novel and should be published.  

Quite a lot of text is devoted to detailed description of graphs that can be clearly seen from the graphs and so is not necessary.

The paper lacks discussion of the results and analysis of improvements that could be made in SPADs to improve jitter and count rates.

Please reference this work "N. Krstajić, S. Poland, J. Levitt, R. Walker, A. Erdogan, S. Ameer-Beg, and R. Henderson, "0.5 billion events per second time correlated single photon counting using CMOS SPAD arrays," Opt. Lett.  40, 4305-4308 (2015)."

More details of the InGaAs/InP SPAD  are required.  What is the structure and properties?

There needs to be some details of the 1550nm laser and its rise time, pulse width and jitter.

Line 109 "limiting the SPAD’s applications in quantum information. "  Please give a value for the acceptable level of after pulse for quantum information.  

Line 127 "The avalanche signal is outstanding, while the background is almost negligible, 127 implying a high SNR of the detecting scheme. "  Please quantify outstanding and negligible. 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

The authors studied the free-running single-photon detector with a GHz sinusoidally gated InGaAs/InP APD. They found that the SPAD has a maximum count rate of up to 500 MHz. Compared with the work by A. Tosi, et.al.[Alberto Tosi, Carmelo Scarcella, Gianluca Boso, and Fabio Acerbi, Gate-Free InGaAs/InP Single-Photon Detector Working at Up to 100 Mcount/s, IEEE Photonics Journal, 5(4), 6801308(2013) DOI: 10.1109/JPHOT.2013.2278526], this work has an improvement in frequency. I recommend its publication.

Author Response

We are grateful to the reviewer for his/her positive comments about our work.

Round 2

Reviewer 1 Report

Thank you for modifying the paper and adding the suggested revisions.

Back to TopTop