Title :
Gain-switching of laser diodes coupled to optical fibers
Author :
Dellunde, Jaume ; Sapia, Adalberto
Author_Institution :
Dept. d´´Estructura i Constituents de la Materia, Barcelona Univ., Spain
Abstract :
Reflections from a fiber positioned at a very short distance from the output facet of a DFB laser diode are shown to induce variations of both mean turn-on time and time jitter under gain switching. Their measured values strongly depend on the phase of the reinjected field even for very small feedback levels. A simple model based on the coupled rate equations for photon and carrier populations is able to describe the experimental results.<>
Keywords :
Q-switching; distributed feedback lasers; jitter; laser feedback; laser theory; optical fibre couplers; semiconductor lasers; 1.3 mum; 13.3 mA; DFB laser diode; carrier populations; coupled rate equations; fiber reflections; gain-switching; laser diodes; mean turn-on time; optical fibers; output facet; photon populations; reinjected field phase; simple model; time jitter; very small feedback levels; Diode lasers; Jitter; Laser feedback; Laser modes; Laser theory; Optical coupling; Optical feedback; Optical fiber devices; Optical fibers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
