Intra-laser-cavity sensing with a dual-wavelength distributed-feedback laser

Edward Bernhardi, Kees van der Werf, Anton Hollink, Kerstin Worhoff, Vinod Subramaniam, Markus Pollnau

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

An integrated intra-laser-cavity microparticle sensor based on a dual-wavelength distributed-feedback channel waveguide laser in Al2O3:Yb3+ on silicon is demonstrated. Real-time detection and accurate size measurement of single micro-particles with diameters of 1-20 μm are achieved. A limit of detection of ~500 nm is deduced. The sensing principle relies on measuring changes in the frequency difference between the two longitudinal laser modes as the evanescent field of the dual-wavelength laser interacts with micro-sized particles on the waveguide surface.
Original languageUndefined
Title of host publication17th European Conference on Integrated Optics
Place of PublicationNice
PublisherCNRS - University Nice Sophia Antipolis
PagesPaper We4bR4
Number of pages2
ISBN (Print)not assigned
Publication statusPublished - Jun 2014
Event17th European Conference on Integrated Optics and Technical Exhibition 2014 - Université Nice, Campus Saint Jean d’Angély, Nice, France
Duration: 24 Jun 201427 Jun 2014
Conference number: 17

Publication series

Name
PublisherCNRS - University Nice Sophia Antipolis

Conference

Conference17th European Conference on Integrated Optics and Technical Exhibition 2014
Abbreviated titleECIO 2014
CountryFrance
CityNice
Period24/06/1427/06/14

Keywords

  • IOMS-APD: Active Photonic Devices
  • METIS-304129
  • IR-91358
  • EWI-24840

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