Research Letters

Flat-topped emission centred at 1 250 nm from quantum dot superluminescent diodes

D. Childs, K.M. Groom, S.K. Ray, H.Y. Liu, M. Hopkinson, R.A. Hogg
South African Journal of Science | Vol 105, No 7/8 | a69 | DOI: https://doi.org/10.4102/sajs.v105i7/8.69 | © 2010 D. Childs, K.M. Groom, S.K. Ray, H.Y. Liu, M. Hopkinson, R.A. Hogg | This work is licensed under CC Attribution 4.0
Submitted: 19 January 2010 | Published: 19 January 2010

About the author(s)

D. Childs,
K.M. Groom,
S.K. Ray,
H.Y. Liu,
M. Hopkinson,
R.A. Hogg,

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Abstract

We present a method for tailoring a broadband and flat-topped emission spectrum in quantum dot superluminescent diodes based upon modification of the dots-in-compositionally-modulated-well (DCMWELL) technique. We demonstrate flat-topped emission with 95 nm full width at half maximum (FWHM), centred at 1 250 nm, and with output power in excess of 8 mW.

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