5 October 2009 Optical fibre cavity ring down measurement of refractive index with a microchannel drilled by femtosecond laser
Author Affiliations +
Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75035Y (2009) https://doi.org/10.1117/12.835167
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
μA microchannel was inscribed in the fibre of a ring cavity which was constructed from two 0.1%:99.9% couplers and a 10m fibre loop. Cavity ring down spectroscopy (CRDS) was used to measure the refractive index (RI) of gels infused into the microchannel with high resolution. The ring down time discloses a nonlinear increase with respect to the RI of the gel and sensitivity up to 300μs/RI unit (RIU) and resolution of 5×10-4 were obtained.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kaiming Zhou, David Webb, Chengbo Mou, Mark Farries, Neil Hayes, Ian Bennion, "Optical fibre cavity ring down measurement of refractive index with a microchannel drilled by femtosecond laser", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035Y (5 October 2009); doi: 10.1117/12.835167; https://doi.org/10.1117/12.835167
PROCEEDINGS
4 PAGES


SHARE
Back to Top