Abstract

Using a phase mask interferometric technique we have generated fiber Bragg gratings with Bragg wavelengths in VIS from 700 nm down to 480 nm. An experimental setup which offers great flexibility in Bragg wavelength, spatial grating length and reflectivity has been used. Gratings with shortest grating lengths of less than 1mm and with reflectivities of more than 70% have been produced. Peak reflectivities of over 99 % were achieved in the visible spectrum. Potential application examples are surface plasmon sensors with gold nanoparticles and an integrated Bragg grating at 550 nm for DNA detection.

© 2007 Optical Society of America