Title :
Over coupled long period grating with enhanced sensitivity to refractive index higher than that of cladding
Author :
Biswas, Priyanka ; Basumallick, Nandini ; Dagupta, K. ; Bandyopdhayay, S.
Author_Institution :
Fiber Opt. & Photonics Div., Central Glass & Ceramic Res. Inst., Kolkata, India
Abstract :
Response characteristics of over coupled long period gratings to ambient refractive index higher than that of cladding index are investigated. For the first time change in the peak attenuation ~ 670 dB/RIU has been reported.
Keywords :
diffraction gratings; fibre optic sensors; refractive index measurement; ambient refractive index; attenuation; enhanced sensitivity; over coupled long period grating; response characteristics;
Conference_Titel :
Fiber Optics and Photonics (PHOTONICS), 2012 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-4718-1
