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Proceedings Paper

Development of fiber long period gratings for biological sensor applications
Author(s): Olivier L'Hénaf; Armen Zohrabyan; Tigran Galstian
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Paper Abstract

We present a fiber long period grating based sensor for biological applications. Inscribed by using point-by-point method, the LPG has a resonant wavelength close to the emission wavelength of biological objects of interest. The part of the light, emitted from sensing area, is collected by both fiber core and cladding, while the majority of light is coupled into the cladding. Back coupling of light of certain wavelength can selectively be achieved from fiber's cladding to core thanks to the LPG. Such selective back coupling allows the increase of efficiency of remote detection of biological objects of interest, using excitation source and detector on the same side of the fiber.

Paper Details

Date Published: 12 August 2008
PDF: 4 pages
Proc. SPIE 7099, Photonics North 2008, 70990P (12 August 2008); doi: 10.1117/12.805390
Show Author Affiliations
Olivier L'Hénaf, Ctr. d'Optique, Photonique et Laser, Univ. Laval (Canada)
Armen Zohrabyan, Ctr. d'Optique, Photonique et Laser, Univ. Laval (Canada)
Tigran Galstian, Ctr. d'Optique, Photonique et Laser, Univ. Laval (Canada)


Published in SPIE Proceedings Vol. 7099:
Photonics North 2008

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