Hi, all
My question is how to simulate the beam propagation from the fiber output. For example, a Gaussian beam is coupled into a single mode fiber and multimode fiber, respectively. In the fiber output, the beam profile is different respect to the the fiber type. So how to simulate the output beam profile? Just like the following figure.(ref: Y. Zhang, Y. Cao, and J.-X. Cheng, Opt. Lett. 44, 3841 (2019). )
Thank you all in advance.
Mingsheng Li