In-house fabrication and detailed analysis of fiber optic long period grating using electric arc discharge method

Dedicated to Professor Bishnu P Pal for his enormous contributions to the advancement of research and education in science and technology through his unique vision and outstanding dedicationIn this paper, we have demonstrated the recent results about the inscription and optimization of long-period grating (LPG) by means of the electric arc discharge (EAD) method.For these purposes, we have employed two different kinds of fibers such as single mode fiber (SMF) and a few modes fiber (FMF).We have optimized the proper combination of arc time and arc power which allows appropriate core and cladding modulation for desired LPG spectral features.These reported results may find potential applications in the field of sensing applications especially in biosensing and chemical sensing where miniaturization along with the higher intrinsic sensitivity is of paramount importance.