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|Title:||Interferometric fiber sensor using exposed core microstructured optical fiber for refractive index based biochemical sensing|
|Citation:||Proceedings of SPIE - The International Society for Optical Engineering, 2014 / LopezHiguera, J., Jones, J., LopezAmo, M., Santos, J. (ed./s), vol.9157, pp.91574P-1-91574P-4|
|Series/Report no.:||Proceedings of SPIE|
|Conference Name:||23rd International Conference on Optical Fibre Sensors (02 Jun 2014 - 06 Jun 2014 : Santander, Spain)|
|Linh Viet Nguyen, Stephen C. Warren-Smith, Alan Cooper, Tanya M. Monro|
|Abstract:||We proposed and experimentally demonstrated an in-fiber interferometric-type sensor by splicing an exposed core microstructured optical fiber (ECF) with lead-in and lead-out single mode fibers (SMFs) for refractive index-based biochemical sensing applications. Due to the multimode characteristic of the ECF, several modes can be excited at the lead-in splicing point and, after propagating through the ECF section, arrive at the lead-out splicing point with different phases forming a multi-arm interference pattern in the transmission spectrum of the device. Two dominant modes were found be consistently excited by maximizing the butt coupling between ECF and SMFs. The interference fringes shifts differently upon applying liquids of different refractive index on the exposed side of the EC.|
|Keywords:||Exposed core; Microstructured fiber; Refractive index; Interference; Biochemical sensing|
|Rights:||© 2014 SPIE|
|Appears in Collections:||IPAS publications|
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