Photonics Research Group Home
Ghent University Journals/Proceedings
About People Research Publications Education Services


Publication detail

Authors: S. Dhoore, G. Roelkens, G. Morthier
Title: Fast wavelength-tunable lasers on silicon
Format: International Journal
Publication date: 4/2019
Journal/Conference/Book: IEEE Journal on Selected Topics in Quantum Electronics (invited)
Volume(Issue): 25(6) p.1500908
DOI: 10.1109/JSTQE.2019.2912034
Citations: 9 ( - last update: 14/7/2024)
7 (OpenCitations - last update: 27/6/2024)
Look up on Google Scholar
Download: Download this Publication (2.9MB) (2.9MB)


We present our recent progress in the realization of heterogeneously integrated InP-on-silicon wavelength-tunable lasers that allow for fast, electronic wavelength tuning. Experimental demonstrations of discretely tunable arrayed waveguide grating (AWG) lasers with filtered feedback and continuously tunable twin-guide (TTG) distributed feedback (DFB) lasers are discussed. Excellent static and dynamic laser characteristics are achieved, with mW-level waveguide-coupled output powers, single-mode operation across the tuning range and direct modulation above 10 Gbit/s. Measured wavelength switching times are less than a few nanoseconds, providing interesting prospects for optical packet switching applications. It is furthermore shown that a novel TTG distributed Bragg reflector (DBR) laser design could further improve the wavelength tuning ranges and efficiencies obtained so far.

Related Research Topics

Citations (OpenCitations)

Back to publication list