Graphene absorber on an SOI chip for active and passive mode locking of lasers

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...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Tom Reep, Cheng-Han Wu, Didit Yudistira, Steven Brems, Inge Asselberghs, Marianna Pantouvaki, Joris Van Campenhout, Dries Van Thourhout, Bart Kuyken
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Online Access:https://doi.org/10.1038/s41598-025-93051-z
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Summary: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.
ISSN:2045-2322

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