Paper 14090-52
Paper 14090-52
Recent progress in self-injection-locked DFB semiconductor lasers using optical fiber ring cavities
On demand | Presented live 14 April 2026 
Abstract
Self-injection locking (SIL) provides an efficient route to stabilizing semiconductor lasers with narrow linewidth and low phase noise using passive optical feedback from high-Q resonators. Here, we demonstrate how optical fiber ring cavities assembled from standard telecommunication components can be used to enhance the performance of distributed-feedback (DFB) lasers through SIL. Experimental results show more than four orders of magnitude linewidth narrowing, phase-locked dual-frequency generation, controllable tuning of laser coherence over two orders of magnitude, and continuous wavelength tuning over more than 10 GHz via thermal control. These capabilities establish fiber-based SIL DFB fiber lasers as versatile sources for sensing and microwave photonics.
Presenter
Dmitrii Stoliarov
Aston University (United Kingdom)
Dr Dmitrii Stoliarov is a Researcher at the Aston Institute of Photonic Technologies, Aston University (UK), specialising in ultrafast lasers, nonlinear and fibre optics. His expertise includes the design and development of ultrafast laser systems, high-power fibre amplifiers and nonlinear frequency conversion stages. He works on laser characterisation, stabilisation, system optimisation and the development of advanced amplification and pulse-shaping techniques. His research interests include optical frequency combs, photonic integrated circuits, and compact femtosecond laser sources for light detection and ranging, as well as telecommunications and biomedical applications. He has authored more than 50 peer-reviewed publications and contributed to major international research projects funded by Horizon 2020, The Leverhulme Trust and the Engineering and Physical Sciences Research Council (EPSRC).
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