[HTML][HTML] All Optical stabilizations of nano-structure-based QDash semiconductor mode-locked lasers based on asymmetric dual-loop optical feedback configurations

TA Alrebdi, M Asghar, H Asghar - Photonics, 2022 - mdpi.com
We report feedback-induced frequency oscillations using a power-split-ratio through
asymmetric dual-loop optical feedback (Loop I:~ 2.2 km and Loop II:~ 20 m) subject to a self …

Effects of Power Split Ratio and Optical Delay Phase Tuning on Stabilization of Self-Mode-Locked Quantum-Dash Lasers Subject to Dual-Loop Optical Feedback

H Asghar, JG McInerney - IEEE Photonics Journal, 2020 - ieeexplore.ieee.org
In the present work, we report a path of RF stabilization versus delay subject to self-mode-
locked (SML) two-section quantum-dash (QDash) lasers emitting at~ 1.55 μm and operating …

Asymmetric dual-loop feedback to suppress spurious tones and reduce timing jitter in self-mode-locked quantum-dash lasers emitting at 1.55 μm

H Asghar, JG McInerney - Optics Letters, 2017 - opg.optica.org
We demonstrate an asymmetric dual-loop feedback method to suppress external cavity side-
modes induced in self-mode-locked quantum-dash lasers with conventional single-and dual …

An asymmetric dual-loop feedback scheme with optimized second delay time to suppress spurious tones and timing jitter of self-mode-locked quantum dash lasers

H Asghar, J McInerney - arXiv preprint arXiv:1707.09399, 2017 - arxiv.org
We demonstrate an asymmetric dual-loop feedback scheme to suppress external cavity side-
modes induced in self-mode-locked quantum-dash lasers with conventional single and dual …

Optimum stabilization of self-mode-locked quantum dash lasers using dual optical feedback with improved tolerance against phase delay mismatch

H Asghar, E Sooudi, P Kumar, W Wei, JG McInerney - Optics express, 2017 - opg.optica.org
We experimentally investigate the RF linewidth and timing jitter over a wide range of delay
tuning in a self-mode-locked two-section quantum dash lasers emitting at~ 1.55 μm and …

Stabilization of self-mode-locked QDash lasers subject to simultaneous continuous-wave optical injection and optical feedback

H Asghar, E Sooudi, JG McInerney - Applied Optics, 2018 - opg.optica.org
In this paper, we report stabilization of self-mode-locked two-section quantum-dash lasers
on the widest range of delay using simultaneous optical injection and optical feedback. With …

[HTML][HTML] Control of Timing Stability, and Suppression in Delayed Feedback Induced Frequency-Fluctuations by Means of Power Split Ratio and Delay Phase …

H Asghar, JG McInerney - Applied Sciences, 2021 - mdpi.com
We experimentally demonstrated a power split ratio and optical delay phase dependent dual-
loop optical feedback to investigate the suppression of frequency-fluctuations induced due …

Stabilization of self-mode-locked quantum dash lasers by symmetric dual-loop optical feedback

H Asghar, W Wei, P Kumar, E Sooudi… - Optics Express, 2018 - opg.optica.org
We report experimental studies of the influence of symmetric dual-loop optical feedback on
the RF linewidth and timing jitter of self-mode-locked two-section quantum dash lasers …

Recent advances in stabilization of mode-locked quantum dash lasers at 1.55 µm by dual-loop optical feedback

H Asghar, E Sooudi, MA Baig, JG McInerney - Optics & Laser Technology, 2020 - Elsevier
This paper reports the effectiveness of a variety of single-and dual-loop optical feedback
arrangements on stability of self-mode-locked two-section quantum dash lasers emitting at≈ …

A novel scheme for two-level stabilization of semiconductor mode-locked lasers using simultaneous optical injection and optical feedback

E Sooudi, C de Dios, JG McInerney… - IEEE Journal of …, 2013 - ieeexplore.ieee.org
We introduce a novel scheme for the simultaneous reduction of time-bandwidth product
(TBP) and RF linewidth of quantum-dash two-section mode-locked lasers using optical …