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100 GHz Multiple Colliding Pulse Generation From Cleaved Facet-Free Multi-Section Semiconductor Laser Diode

Guzman Martinez, RC; Cesar Cuello, J; Zarzuelo, A; Lo, MC; Ali, M; Carpintero del Barrio, G; (2020) 100 GHz Multiple Colliding Pulse Generation From Cleaved Facet-Free Multi-Section Semiconductor Laser Diode. IEEE Journal of Quantum Electronics , 56 (2) , Article 2000508. 10.1109/JQE.2019.2959528. Green open access

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Abstract

We present a monolithically integrated mode-locked laser (MLL) with 25 GHz fundamental repetition rate frequency, which has been designed to operate in a fourth-order colliding regime, to generate 100 GHz. This device has been fabricated within a multi-project wafer (MPW) run in an InP-based active-passive generic foundry. The Fabry-Perot laser resonator, of around 1.66 mm length, is defined by two on-chip reflectors, eliminating the need of cleaved facet. Three saturable absorber sections are symmetrically located by spacing them a quarter of this total length, dividing the cavity into four gain segments. We show that this structure can generate an electrical beat note at 25 GHz as well as 100 GHz, with a linewidth of 350 kHz and 150 kHz, respectively, operating in passive operation regime.

Type: Article
Title: 100 GHz Multiple Colliding Pulse Generation From Cleaved Facet-Free Multi-Section Semiconductor Laser Diode
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/JQE.2019.2959528
Publisher version: https://doi.org/10.1109/JQE.2019.2959528
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Technology, Physical Sciences, Engineering, Electrical & Electronic, Quantum Science & Technology, Optics, Physics, Applied, Engineering, Physics, Semiconductor laser, saturable absorber, multimode interference reflectors, electrical linewidth, multiple colliding pulses, mode-locked laser, PHOTONIC INTEGRATED-CIRCUIT, MILLIMETER-WAVE, MODE-LOCKING
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10113516
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