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Authors: T. Reep, C. Wu, D. Yudistira, S. Brems, I. Asselberghs, M. Pantouvaki, J. Van Campenhout, D. Van Thourhout, B. Kuyken
Title: Graphene absorber on an SOI chip for active and passive mode locking of lasers
Format: International Journal
Publication date: 3/2025
Journal/Conference/Book: Scientific Reports
Volume(Issue): 15(1)
DOI: 10.1038/s41598-025-93051-z
Citations: Look up on Google Scholar
Download: Download this Publication (3.8MB) (3.8MB)

Abstract

We demonstrate both passive and active mode-locking of fiber lasers using a graphene-based absorber integrated on a silicon photonics platform manufactured using a wafer-scale CMOS process. Passive mode-locking is achieved at a 28 MHz repetition rate, generating 1.7 ps optical pulses, while active mode-locking is demonstrated at repetition rates of 4 GHz and 10 GHz. This work demonstrates the potential of scalable graphene-based saturable absorbers for fiber laser locking and paves the way for future fully integrated mode-locked laser systems.

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