Role Of Optical Fiber Technology In Grating Mechanical And Biochemical Sensors

The current research investigates the role of grating mechanical and biochemical seniors. fiber Bragg grating (TFBG) has a grating period similar to that of a regular fiber Bragg grating (FBG), i.e. roughly one third of the wavelength (in glass fibers) but grating planes that are weakly tilted relative to the fiber axis. Similar to LPGs, this tilt enables strong coupling between the core mode and select cladding modes but the phase matching condition is different, as the resonance wavelength depends on the SUM of the effective indices (the corresponding theory was developed by Erdogan et al. at Roche-ster University in the US [39–41] and in many other follow up papers [42–53]). This makes resonance positions much less sen-sitive to perturbations but much more controllable in real appli-cations