Answers are grounded in this paper and cite their sources.
The characterization of the spatial mode profile of distributed feedback fiber lasers (DFB-FLs) is discussed. A new approximate solution for the mode profile of single longitudinal mode DFB-FLs with nonuniform phase and grating profiles is derived. An enhanced high resolution heat perturbation method for mode shape characterization is described. Experimental mode shape profiles are compared with theoretical predictions with good agreement.
No takes yet. Share an insight, caveat, or question.
Foster et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: