Figure 2
From: Experimental characterization of Raman overlaps between mode-groups

(a) Raman gain for both a LP01 and LP11-signal with a pump in the mixture of 83% LP11 and 17% LP01 demonstrating near-equal gain for the two signals. (b) MDG between the two signal modes for pump almost completely converted to LP11 and pump in the mixture of 83% LP11 and 17% LP01. A line for 0.5 dB gain difference per 10 dB gain is included for reference.