Investigations on laser-induced long-period fiber gratings written in polarization maintaining photonic crystal fiber

摘要

We report on fabrication and characterization of a long period grating in polarization maintaining photonic crystal fiber. The sensing properties of the grating have been investigated and it was shown to possess insensitivity to temperature, a refractive index sensitivity of 15.2 nm/RI, and a bending sensitivity of 24.1 nm.cm.