Swept-source laser based on quantum-dot semiconductor optical amplifier-applications in optical coherence tomography

N. Krstajić, David T. D. Childs, S. J. Matcher, Daniil Livshits, Alexey Shkolnik, Igor Krestnikov, R. A. Hogg

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    15 Citations (Scopus)


    We present a swept-source laser based on a quantum-dot semiconductor optical amplifier (QD SOA) (designed and manufactured by Innolume Gmbh, Germany) as the gain medium. The properties of the laser are as follows: center wavelength is 1220 nm, sweep range is 94 nm (up to 120 nm in manual mode), the peak laser power is 16 mW, and the sweep speed is 100 Hz. We apply the laser in an optical coherence tomography (OCT) configuration and present images of in vivo skin. QD SOA are well suited to OCT and we show the setup can be improved for power, sweep range, and sweep speed.

    Original languageEnglish
    Article number5735192
    Pages (from-to)739-741
    Number of pages3
    JournalIEEE Photonics Technology Letters
    Issue number11
    Early online date22 Mar 2011
    Publication statusPublished - 1 Jun 2011



    • Optical coherence tomography (OCT)
    • quantum-dot semiconductor optical amplifier (QD SOA)
    • swept-source lasers

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