Integrated approach to laser delivery and confocal signal detection

N. Ismail, B.I. Akça, F. Sun, Kerstin Worhoff, R.M. de Ridder, Markus Pollnau, A. Driessen

    Research output: Contribution to journalArticleAcademicpeer-review

    22 Citations (Scopus)
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    Abstract

    We present an on-chip arrayed waveguide grating (AWG) sensor based on the confocal arrangement of two AWGs, one acting as focusing illuminator and one as signal collector. The chip can be close to, or in direct contact with, a sample, e.g., biological tissue, without the need of external optics. The collection efficiency of our device can be more than 1 order of magnitude higher than that of a standard AWG, in which light is collected by one input channel. Experimental results on the collection efficiency and volume are presented, together with a demonstration of multiwavelength imaging.
    Original languageUndefined
    Pages (from-to)2741-2743
    Number of pages3
    JournalOptics letters
    Volume35
    Issue number16
    DOIs
    Publication statusPublished - 15 Aug 2010

    Keywords

    • EWI-18274
    • IR-72528
    • METIS-270968
    • IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY

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