Maximising performance of optical coherence tomography systems using a multi-section chirped quantum dot superluminescent diode

P. D L Judson, K. M. Groom, D. T D Childs, M. Hopkinson, N. Krstajic, R. A. Hogg

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    Key device requirements for maximising resolution in an optical coherence tomography system are discussed. The design and operating parameters of a multi-contact quantum dot superluminescent diode incorporating a number of features which inhibit lasing are described. Such devices allow the independent tuning of emission power and spectral shape; hence the penetration depth and resolution in optical coherence tomography are decoupled. The emission spectrum of a device utilising chirped quantum dots is shown to be tuned to produce a broadband single Gaussian emission, centred at the required wavelength of 1050 nm, with high output powers than a single contact device.

    Original languageEnglish
    Pages (from-to)588-591
    Number of pages4
    JournalMicroelectronics Journal
    Volume40
    Issue number3
    DOIs
    Publication statusPublished - Mar 2009

    Keywords

    • Multi-contact
    • Quantum dot
    • Spectral tailoring
    • Superluminescent diode

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