Home Forums GRATING Delay in FBG

Delay in FBG

(joined October 2018)
Participant

I am working with FBG and getting a delay of 36 ps at my center wavelength, How can I reduce this delay??
By varying which grating parameters i can achieve less delay

Responses (1):

  • #51331
    Rahul Rah
    Participant

    I am working with FBG and getting a delay of 36 ps at my center wavelength, How can I reduce this delay??
    By varying which grating parameters i can achieve less delay

  • #51351
    Profile Photo
    Steve Dods
    Participant

    Many parameters affect delay. One of them is index modulation. A higher index modulation will result in the optical wave penetrating a shorter distance into the grating. The shorter distance will result in less delay, since the wave need not travel as far to finish the reflection.

Login You must be logged in to reply to this topic.