Advances in Highly Sensitive D-shaped Optical Filter Using Soft Film Bragg Grating Techniques

Abstract

This work achieved a highly sensitive D-shaped fiber optical filter by soft film Bragg grating techniques and Polydimethylsiloxane master mold. The D-shaped fiber covered by a polymer Bragg grating plate with a refractive index of 1.512 demonstrated a reflection wavelength of 1547.6 nm and an optical power of 8.3 dB.