How the dispersion of a PCF for THz transmission can be made flattened?

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Andrea Piroddi

Soeun et al. proposed to use roll up method with PTFE. The PCF made of this method shows dispersion flatness by the air region between PTFE tubes around core and high birefringence by asymmetric mode distributions. you can find something more at the attached link.

best regards

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1846021

Sharafat Ali

You can try using smaller sized air holes at the core with higher compactness

Regards

Md. Saiful Islam

Thank you for answering