Fabry-Perot interferometer embedded in a glass chip fabricated by femtosecond laser
Optics Letters, Vol. 34, Issue 16, pp. 2408-2410 (2009)
http://dx.doi.org/10.1364/OL.34.002408
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Abstract
We report a simple Fabry–Perot interferometer (FPI) embedded in a glass chip, which is capable of precisely measuring the refractive indices of liquid samples. The microdevice is the integration of a single-mode optical fiber and a microchannel in the photosensitive glass fabricated by femtosecond laser followed by thermal treatment, wet etching, and annealing. The function of the FPI is demonstrated by measuring the refractive indices of water and methanol. The interference visibility is more than 4.0 dB, which is sufficient for most sensing applications. This refractive index sensor with rigid structure could be further integrated to become a more complex 3D lab-on-a-chip for reliable biomedical applications.
© 2009 Optical Society of America
OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.7090) Lasers and laser optics : Ultrafast lasers
ToC Category:
Diffraction and Gratings
History
Original Manuscript: May 11, 2009
Revised Manuscript: July 1, 2009
Manuscript Accepted: July 9, 2009
Published: August 4, 2009
Virtual Issues
Vol. 4, Iss. 10 Virtual Journal for Biomedical Optics
Citation
Cheng-Hsiang Lin, Lan Jiang, Hai Xiao, Yen-Hsin Chai, Shean-Jen Chen, and Hai-Lung Tsai, "Fabry-Perot interferometer embedded in a glass chip fabricated by femtosecond laser," Opt. Lett. 34, 2408-2410 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-16-2408
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