- This topic has 8 replies, 2 voices, and was last updated 10 years, 11 months ago by
Heitor Galvao.
-
AuthorPosts
-
-
November 25, 2014 at 10:49 am #16006
mai fouad
Participantif i have two SMF (single mode fiber) and i want to make a relative propagation delay between them about 1 ps/km , how to set this parameter in optisystem optical fiber ?
-
November 25, 2014 at 11:24 am #16008
Heitor GalvaoParticipantYou open the properties of the fiber optic block (which already comes as standard in SMF optisystem) will in Differential Group Delay and make the necessary modification
-
November 25, 2014 at 11:31 am #16011
Heitor GalvaoParticipantSee this small file
-
November 25, 2014 at 11:41 am #16014
mai fouad
Participantbut DGD differential group delay related to delay between two polarization modes not delay between propagation time between two different fibers !!!
-
November 25, 2014 at 11:45 am #16015
Heitor GalvaoParticipantYes this related to polarization mode dispersion (PMD), thanks for the correction
-
-
November 25, 2014 at 12:38 pm #16024
Heitor GalvaoParticipantYou can do the following you can go into global variables create variable delay with the respective unit. The definition of the optical delay is the following “Generates optical signal delays. The delay is added by sending NULL signals to the output port. “With this you put between the amplifier output that accompanies the first fiber with the entry of the second most fiber amplifier
-
November 25, 2014 at 12:40 pm #16027
Heitor GalvaoParticipantThis block “optical fiber” by default the optisystem offers it with characteristics of SMF
-
November 25, 2014 at 12:42 pm #16028
Heitor GalvaoParticipantAnd the dispersion compensated so reducing the length of second fiber in half, and fold the dispersion looks like this
(D1) * L1 + D2*L2 = 0
16.75 + 50 * (25) * (-33.5) = 0 -
November 25, 2014 at 12:44 pm #16029
Heitor GalvaoParticipantI have helped
-
-
AuthorPosts
- You must be logged in to reply to this topic.