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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 16 — Aug. 15, 2010
  • pp: 2741–2743

Integrated approach to laser delivery and confocal signal detection

Nur Ismail, Bakiye Imran Akca, Fei Sun, Kerstin Wörhoff, René M. de Ridder, Markus Pollnau, and Alfred Driessen  »View Author Affiliations


Optics Letters, Vol. 35, Issue 16, pp. 2741-2743 (2010)
http://dx.doi.org/10.1364/OL.35.002741


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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.

© 2010 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(300.0300) Spectroscopy : Spectroscopy
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Spectroscopy

History
Original Manuscript: April 1, 2010
Revised Manuscript: June 28, 2010
Manuscript Accepted: July 19, 2010
Published: August 12, 2010

Virtual Issues
Vol. 5, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Nur Ismail, Bakiye Imran Akca, Fei Sun, Kerstin Wörhoff, René M. de Ridder, Markus Pollnau, and Alfred Driessen, "Integrated approach to laser delivery and confocal signal detection," Opt. Lett. 35, 2741-2743 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-16-2741

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