Ind.mod (index modulation) - Optiwave

This topic has 1 reply, 2 voices, and was last updated 3 years, 2 months ago by Amin Khorshidahmad.

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- September 7, 2020 at 4:35 am #68048
  Mohammed .A. Yaseen
  Participant
  hi all
  can any one help me how i calculate the value of index modulation in FBG and what index modulation mean.
  
  thank you
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- September 8, 2020 at 9:50 am #68062
  
  Amin Khorshidahmad
  Participant
  
  Hi Yaseen,
  
  Please refer to page 22 of the manual for more details. In brief, Ind. Mod. (or delta_n) is the index modulation amplitude or the strength of the grating, e.g. peak refractive index change of the sinusoidal grating. Along with the length, It affects the bandwidth and reflectivity of the grating.
  
  Kid regards,
  Amin
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