Fig. 10: Power distribution of fiber core modes.
From: Transverse mode coupling in monolithic few-mode fiber laser oscillators

a LP01; b LP11e; c LP11o; d LP21e; e LP21o; f LP0
From: Transverse mode coupling in monolithic few-mode fiber laser oscillators

a LP01; b LP11e; c LP11o; d LP21e; e LP21o; f LP0