O-Band Frequency-Tunable (10–22 GHz) Ultra-Low Timing-Jitter (<12-fs) Regenerative Mode-Locked Laser
Round 1
Reviewer 1 Report
The authors demonstrate an O-band regenerative mode-locked laser (RMLL) based on an optoelectronic oscillation configuration and SOA. With single-mode fiber, 25-GHz optical pulses were realized. With a 300-m polarization-maintaining fiber and a tunable filter, low-timing jitter mode-locked optical pulses with repetition-rate tunable from 10 GHz to 22 GHz were achieved. This work is interesting, and this article is well organized. It can be accepted. Several suggestions:
- Please discuss the difference (e.g., the performance, the noise source) between the O-band RMLL and the C-band RMLL.
- Please briefly discuss the limitation of the proposed scheme. For example, how to obtain pulses with lower timing-jitter? What is the limitation of the timing-jitter for this scheme?
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This manuscript domonstrated a frequency-tunable and low-timing-jitter O-band regenerative mode-locked laser using an optoelectronic oscillation configuration and electric controlled Yttrium Iron Garnet (YIG) bandpass filter. It is interesting and well presented. Just two issues need to be clarified.
- The center wavelength of the 25GHz RMLL was around in 1337 nm, while the center wavelength of the10GHz was set at about 1333.5 167 nm. What is the reason?
- An optical filter was incorporated in the RMLL, is it possible to tune freely the central wavelength of the RMLL?
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
