Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask
Figure 18
Saturation levels of the active fibers 's as a function of (a) loss at 1550 nm and (b) loss at 980 nm. Error bars denote the averaging of the values obtained from the three sequential exposures of the fiber. Dotted lines denote the linear regression through the data points.
