My Ph.D. research involved the stabilization of quantum nanostructure-based semiconductor mode-locked lasers using delayed optical feedback and optical injection locking technique.

Haroon Asghar, Rizwan Ahmed, Muhammad Sohail, Zeshan A.Umar, and M. Aslam Baig. Optical Materials 134, 2022. 15: 2022: A novel technique for the fabrication of a saturable absorber for fiber lasers: pulsed laser deposition. H Asghar, R Ahmed, ZA Umar, MA Baig. Laser Physics Letters 19 (7), 075106, 2022. 15:

Contributors: Asghar, Haroon; Ahmed, Rizwan; Ajmal, Rizwan; Umar, Zeshan A.; McInerney, John. G.; Baig, M. Aslam Show more detail Source : check_circle

Affiliations: [Department of Physics, Atomic and Molecular Physics Laboratory, Quaid-i-Azam University, Islamabad, Pakistan].

2022年11月24日 · In this paper, we present the performance and stability of an erbium-doped fiber laser (EDFL) based on ZnO saturable-absorber (SA) prepared using two schemes: solution method (SM) and pulsed laser...

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

*[email protected] Abstract: 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_m and operating at ~ 21 GHz repetition rate subject to single and dual optical feedback into gain section.

We demonstrate a symmetric dual loop feedback scheme, insensitive to delay phase tuning, for a self-mode-locked quantum dash laser emitting at ~ 1.55 μm and operating at ~ 21 GHz repetition rate....