Monolithic InP quantum dot mode-locked lasers emitting at 730 nm

Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Forrest, Adam F., Alharbi, Reem, Krysa, Andrey B., Cataluna, Maria Ana and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2020. Monolithic InP quantum dot mode-locked lasers emitting at 730 nm. IEEE Photonics Technology Letters 32 (17) , pp. 1073-1076.

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Abstract

This letter reports on InP/GaInP quantum dot mode-locked lasers emitting in the 730 nm wavelength region, extending the spectral range of previously reported monolithic mode-locked edge-emitting lasers. Modal gain and absorption measurements were used to identify a relatively broad spectrum which is utilised to support passive mode-locking in a monolithically integrated two-section ridge laser. The conditions for mode-locking were explored by varying the current to the gain section and reverse bias to the absorber section. For a total cavity length of 3 mm, the shortest pulse train observed was 6 ps in duration with a repetition rate of 12.55 GHz.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
ISSN:	1041-1135
Date of First Compliant Deposit:	27 July 2020
Date of Acceptance:	5 July 2020
Last Modified:	25 Nov 2024 00:00
URI:	https://orca.cardiff.ac.uk/id/eprint/133779

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