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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
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      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.

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