title: Regeneratively stabilized 4th order rational harmonic mode-locked erbium doped fiber laser operating at 40Gb/s.
abstract: We report a long term stabilized 4th order rational harmonic mode-locked (RHML) erbium doped fiber laser operating at 40Gb/s. The cavity length drift induced laser instability is overcomed by constructing a modified regenerative type feedback loop to actively adjust the modulation frequency of the 10GHz driving signal. The 4th RHML fiber laser is tested to be highly stable against environmental perturbations.
authors.forename: G
authors.initials: G
authors.lastname: Zhu
authors.forename: N K
authors.initials: NK
authors.lastname: Dutta