Compact and electrically driven active mode-locked laser at 10 GHz repetition rate based on a graphene electro-absorption modulator

Optics Letters 2026 Open access

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Authors: S. Massabeau, Tom Reep, Cheng-Han Wu, Steven Brems, Didit Yudistira, Joris Van Campenhout, Bart Kuyken, Christian Larat, Dries Van Thourhout, Ghaya Baili
DOI: 10.1364/ol.587312
Cited by: 1
References: 21

Abstract

In this Letter, we demonstrate an actively mode-locked laser at telecom wavelength made of graphene electro-absorption modulator on a photonic integrated circuit, inserted in a dispersion-engineered cavity with III-V semiconductor optical amplifiers as gain medium. Stable low-jitter pulse trains at 10 GHz with 2.9 ps deconvoluted pulse widths are achieved, with performances comparable to a commercial lithium niobate high-speed modulator. These results highlight the potential of integrated graphene-based devices for the realization of compact and stable optical clocks operating at high repetition rate.

Fields of Study & Subjects

Advanced Fiber Laser Technologies Diamond and Carbon-based Materials Research Solid State Laser Technologies

Publication details

Journal / source
Optics Letters
Publisher
Optica Publishing Group
Volume
51
Issue
5
Pages
1315–1315
Publication date
9 February 2026
Language
EN