Optical generation and sideband injection lockingoftunable 11–120 GHz microwave/millimetre signals

On The Prediction of Self-Pulsations in Two-Section Partially Gain-Coupled DFB Lasers

“…In TS-GC DFB lasers the two modes are non-degenerate and a minimum coupling strength is required in order for the modes to exist [4]. However, the minimum coupling strength predicted was higher than the value estimated experimentally for such a device [2]. By using quantum-well parameters instead of bulk semiconductor parameters, we demonstrate the ability of the model to predict self-pulsations in TS-GC DFB lasers with significantly lower coupling strength than previously reported.…”

“…Self-pulsating two-section partially gain-coupled (TS-GC) DFB lasers are dual mode lasers with applications in optical clock recovery [1] and microwave/millimeter-wave generation [2]. The mode spacing is a function of the bias current condition and therefore the frequency of the self-pulsation is tunable.…”

Optical microwave/millimeter-wave links using direct modulation of two-section gain-coupled DFB lasers

“…As a result, it produces MMW-frequency self-pulsation through optical heterodyning between these two lasing modes. Large self-pulsation frequency tuning range from about 10 GHz up to more than 100 GHz [5] has been demonstrated. In comparison, the tunability of active mode locking of a few modes is only a few gigahertz [2].…”

“…In comparison, the tunability of active mode locking of a few modes is only a few gigahertz [2]. High-purity tunable optical 1041-1135/$20.00 © 2005 IEEE MMW generation has been demonstrated with subharmonic injection locking using a TS-GC DFB laser [5].…”

Dynamics of symmetrical mode beating in complex coupling two-section DFB lasers

“…Two-section self-pulsating distributed feedback lasers are dual mode lasers with applications in optical clock recovery (Mao et al 2002) and microwave/millimeter-wave generation (Al-Mumin et al 2000). The existence of two modes in the cavity leads to the mode beating responsible for the self-pulsations.…”