Refractive Index Sensing Characteristics of Metal-Coated Optical Fiber-Long Period Gratings (LPGs)

Saurabh Mani Tripathi (1, 2) , Arun Kumar (2) , Emmanuel Marin (1) , Jean-Pierre Meunier (1)

1 LHC - Laboratoire Hubert Curien
2 IIT Delhi - Indian Institute of Technology Delhi

A metal coated LPG based sensor using pure surface plasmon polaritons is studied and found to (i) be 12-20 times more sensitive than the FBG one (ii) have maximum sensitivity at an optimum metal thickness.

Keywords: Fiber sensor; Long period grating; surface plasmon polaritons

Domains: Electromagnetism; Optics / Photonic

Saurabh Mani Tripathi, Arun Kumar, Emmanuel Marin, Jean-Pierre Meunier. Refractive Index Sensing Characteristics of Metal-Coated Optical Fiber-Long Period Gratings (LPGs). 5th Workshop on Fibres and Optical Passive Components (WFOPC 2007),, Dec 2007, Taipei, Taiwan. pp.TH2B-4. ⟨ujm-00356472⟩