Figure 3
From: Integrated optical gyroscope using active Long-range surface plasmon-polariton waveguide resonator

(a) Relation of optimized SNLS, SELS and net loss with different intrinsic losses (IL) and relation between optimized SELS, SNLS and net loss with kmin of (b) 0.01%, (c) 0.1% and (d) 1% with different Nturn.
The dotted line (observed in large scale) represents SNLS and solid line represents SELS.