Point-by-Point Bragg grating inscription into single-polarisation all-solid photonic bandgap fibre

Abstract

We demonstrate Point-by-Point Bragg grating inscription into the core of a single-polarisation all-solid photonic bandgap fibre. Grating strength of 7.5 dB (>;80% reflectivity) was realised at 1064 nm with linearly-polarised feedback.