Community Forums - Chetan Chauhan

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Free Evaluation

Forum Replies Created

December 20, 2018 at 12:46 pm #50154

Participant

Okay. We are in process to purchase licensed version.
Thank you for help and suggestions.

December 20, 2018 at 12:35 pm #50152

Participant

C:\Users\xxxxxxxx\Documents\OptiSystem 15.2 Samples\Software interworking\OptiGrating

I tried above system.
but Actually while implementing SAC-OCDMA with MD code
e.g if I consider 5 users with code weight 2
code will be U1= 1 0 0 0 0 0 0 0 0 1 U2 = 0 1 0 0 0 0 0 0 1 0 U3= 0 0 1 0 0 0 0 1 0 0 … U4 and so U5.
Now I am allocating wavelength = U1 = 1550.1 and 1551 U2= 1550.2 and 1550.9 …spacing of 0.1 nm for each wavelength for users.
at receiver end I am using same grating value to detect signal using direct detection. But I can’t. And I even tried to change power levels and also sample rate.

Can i get solution for same?

December 20, 2018 at 12:26 pm #50150

Participant

Forum is not allowing me to upload osd file

December 20, 2018 at 12:23 pm #50149

Participant

Dear Ahmad Atieh,

Thank You for gentle response. I will surely go through those sample systems.

I am using OptiSystem vesion 15.
the problem I am facing with designing system are:
1) How to simulate for higher users 2) how to get constant (almost near around range) BER e.g.e-14, e-13, e-15 For all active users. Currently I am getting large variation in BER for each receiving users.
I have attached file for same here named md_5use2W

When I try to go for White light the system doesn’t work. File for same I have attached named as DD SAC.

Can you please point out my mistakes to overcome above problems and suggest probable changes?

Hoping for quick gentle response

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