Fiber Bragg Grating demonstration

A Fiber Bragg Grating consists of a fiber segment, where the refractive index is periodically increased. The spacing between such increases causes a particular range of wavelengths to be strongly reflected while letting all others pass through.
Explanations of FBGs:
www.rp-photoni...
www.fiberoptic...

[@naveed3619]

Hi thanks for the video.
I have a question regarding D parameter of CFBG. Normally its D parameter is given in ps/nm. If we use CFBG for dispersion management inside the laser cavity, how would we convert D given in ps/nm to ps^2, since GDD of the fibre in the cavity would be ps^2