title: Observation of reflection feedback induced the formation of bright-dark pulse pairs in an optically pumped semiconductor laser.
abstract: It is experimentally demonstrated that the tiny reflection feedback can lead the optically pumped semiconductor laser (OPSL) to be operated in a self-mod-locked state with a pulse train of bright-dark pulse pairs. A theoretical model based on the multiple reflections in a phase-locked multi-longitudinal-mode laser is developed to confirm the formation of bright-dark pulse pairs. The present finding can offer an important insight into the temporal dynamics in mode-locked OPSLs.
authors.forename: C H
authors.initials: CH
authors.lastname: Tsou
authors.forename: H C
authors.initials: HC
authors.lastname: Liang
authors.forename: K F
authors.initials: KF
authors.lastname: Huang
authors.forename: Y F
authors.initials: YF
authors.lastname: Chen