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This paper investigates the dynamics of Bragg-detuned Distributed Feedback (DFB) lasers, specifically comparing conventional corrugation-pitch-modulated DFB lasers (CPM-DFB) with those that have a longitudinally dependent coupling coefficient (CPM-DCC-DFB). The study demonstrates that while CPM-DCC-DFB lasers can achieve better steady-state singlemode operation and reduced modal instabilities, they may experience side mode excitation during transient intervals. The findings suggest that optimizing the coupl

Author

fan ping

Language

EN