Dual-wavelength InP quantum dot lasers

Shutts, S. ORCID: https://orcid.org/0000-0001-6751-7790, Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 and Krysa, A. B. 2014. Dual-wavelength InP quantum dot lasers. Applied Physics Letters 104 (24) , 241106. 10.1063/1.4883857

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Abstract

We have demonstrated a two-section dual-wavelength diode laser incorporating distributed Bragg reflectors, with a peak-wavelength separation of 62.5 nm at 300 K. Each lasing wavelength has a different temperature dependence, providing a difference-tuning of 0.11 nm/K. We discuss the mechanisms governing the light output of the two competing modes and explain how the short wavelength can be relatively insensitive to output changes at the longer wavelength. Starting from an initial condition when the output at both wavelengths are equal, a 500% increase in the long wavelength output causes the short wavelength output to fall by only 6%.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Additional Information:	http://www.sherpa.ac.uk/romeo/issn/0003-6951/ (accessed 20/06/14).
Publisher:	AIP Publishing
ISSN:	0003-6951
Funders:	EPSRC
Date of First Compliant Deposit:	30 March 2016
Date of Acceptance:	2 June 2014
Last Modified:	20 May 2023 10:36
URI:	https://orca.cardiff.ac.uk/id/eprint/60858

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