Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask
Figure 6
Comparison of modeled (black) and experimental (gray) spectra for an irradiation intensity below the type I-IR to type II-IR transition ( W/cm2). Inset is the profile used to model the spectrum; fringe spacing is not to scale in figure.