Gebeyehu Dirbeba

4 Questions 4 Answers 0 Followers

Questions related from Gebeyehu Dirbeba

How would a non-OAM free space or fiber mode be converted to OAM mode in the fiber and what would be the efficiency?

Dear all! can anyone help me with the answer of this question? Thanks a lot!

01 March 2024 3,809 0 View

How to use this mode coupling coefficient (κ) in COMSOL for fiber mode analysis simulations?

Hello Science communities! Please would you help me how to use this equation in COMSOL Multiphysics software or any other technique? Thank you!

18 November 2023 8,848 0 View

I am simulating OAM phase distributions using metasurface. I am confused about the phase plot. Can anyone help me please?

Are the phase-front distributions of OAM mode in COMSOL is arg(ewfd.Ez) or atan2(imag(ewfd.Ey), real(ewfd.Ey)) *180/pi? Can anyone give me a concrete idea please? thank you

20 July 2023 5,623 0 View

I am using COMSOL to analyze the OAM modes but i can't solve the problem of plotting waveguide dispersion using neff . can you help me please?

I need a help on this please i am in serious problem

04 May 2023 375 7 View