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Simple dispersion estimate for single-section quantum-dash and quantum-dot modelocked laser diodes

Ó Dúill, Seán P. orcid logoORCID: 0000-0002-7690-4474, Murdoch, Stuart G. orcid logoORCID: 0000-0002-9169-9472, Watts, Regan T. orcid logoORCID: 0000-0002-9434-3746, Rosales, Ricardo, Ramdane, Abderrahim, Landais, Pascal orcid logoORCID: 0000-0002-4807-0695 and Barry, Liam P. orcid logoORCID: 0000-0001-8366-4790 (2016) Simple dispersion estimate for single-section quantum-dash and quantum-dot modelocked laser diodes. Chinese Optics Letters, 41 (4). pp. 4676-5679. ISSN 0146-9592

The optical outputs of single-section quantum-dash and quantum-dot mode-locked lasers (MLL) are well-known to exhibit strong group velocity dispersion. Based on careful measurements of the spectral phase of the pulses from these MLLs, we confirm that the difference in group delay between the modes at either end of the MLL spectrum equals the cavity roundtrip time. This observation allows us to deduce an empirical formula relating the accumulated dispersion of the output pulse to the spectral extent and free-spectral-range of the MLL. We find excellent agreement with previously reported dispersion measurements of both quantum-dash and quantum-dot MLLs over a wide range of operating conditions.
Item Type:Article (Published)
Uncontrolled Keywords:Mode-locked lasers; Semiconductor lasers; Laser theory; Dispersion; Femtosecond phenomena
Subjects:Engineering > Optical communication
Physical Sciences > Photonics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Institutes and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Optical Society of America
Official URL:https://dx.doi.org/10.1364/OL.41.005676
Copyright Information:© 2016 Optical Society of America
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:27250
Deposited On:24 May 2022 09:40 by Pascal Landais . Last Modified 17 Feb 2023 16:10

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