Optimization and characterization of femtosecond laser inscribed in-fiber microchannels for liquid sensing

Lee, Graham C.B., Mou, Chengbo, Zhou, Kaiming and Sugden, Kate (2014). Optimization and characterization of femtosecond laser inscribed in-fiber microchannels for liquid sensing. IN: 23rd international conference on Optical Fibre Sensors. López-Higuera, José M.; Jones, Julian D.C.; López-Amo, Manuel and Santos, José L. (eds) SPIE proceedings . ESP: SPIE.

Abstract

In-fiber microchannels were fabricated directly in standard single mode fiber using the femtosecond laser inscribe and etch technique. This method of creating in-fiber microchannels offers great versatility since it allows complex three dimensional structures to be inscribed and then etched with hydrofluoric acid. Four in-fiber microchannel designs were experimentally investigated using this technique. Device characteristics were evaluated through monitoring the spectral change while inserting index matching oils into each microchannel - a R.I. sensitivity up to 1.55 dB/RIU was achieved. Furthermore, a simple Fabry-Pérot based refractometer with a R.I. sensitivity of 2.75 nm/RIU was also demonstrated.

Publication DOI: https://doi.org/10.1117/12.2058315
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Additional Information: Graham C. B. Lee ; Chengbo Mou ; Kaiming Zhou and Kate Sugden "Optimization and characterization of femtosecond laser inscribed in-fiber microchannels for liquid sensing", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915743 (June 2, 2014). Copyright (2014) Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.2058315
Event Title: 23rd international conference on Optical Fibre Sensors
Event Type: Other
Event Dates: 2014-06-02 - 2014-06-06
Uncontrolled Keywords: etching,femtosecond laser,fiber optic sensors,hydrofluoric acid,inscription,microchannel,refractometer,Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
Full Text Link: http://proceedi ... ticleid=1877809
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2014-06-02
Authors: Lee, Graham C.B. ( 0000-0002-9073-685X)
Mou, Chengbo ( 0000-0001-6107-3439)
Zhou, Kaiming ( 0000-0002-6011-1912)
Sugden, Kate ( 0000-0001-6323-1082)

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