Hello Sumaya,
Thanks for reaching out to us.
We do have a specific example on TWDM-PON but that we provide only to our paid customers. If you really think you are going to use OptiSystem for your project for few months or a year, you can opt for leasing the OptiSystem for few months and pay accordingly for the license. The advantage of buying/leasing the license is that you get uninterrupted access, all the necessary regular updates plus you get access to specific examples (like TWDM-PON) and you also get comprehensive technical support.
If you are interested in purchasing the academic license then please click on the link below, follow the instructions, and apply for the license.
Getting an Optiwave Student License
If you decide not to purchase the license then for now you can refer to the example (Dynamic GPON.osd) as a reference to build your project. The project is located at C:\Users\USER NAME\Documents\OptiSystem 22.1 Samples\Metro and access systems\PON and CDMA systems\.
Let me know if you are interested in buying the academic license which we offer at very subsidized rates.
I hope this helps?
Best,
Saurabh Bedi.
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