Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask

<table>Grating growth in H<sub>2</sub>-loaded <i>FiberCore</i> fiber through the jacket (white circles) and with jacket removed (black diamonds). Inset image is of transmission spectra of gratings written through thejacket with (top) and without (bottom) H<sub>2</sub>-loading.</table>

Laser Chemistry

fig13

Figure 13

Figure 13: Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask 