Nonlinear Dynamics of Multi-Section Tunable Lasers

Detuning Boundaries of Linear and Nonlinear Dynamics in a System of Coupled Lasers

“…Therefore ξ (Δz fibre ) is the remaining relation requiring calibration to generate ξ tot (I SOA , Δz fibre ) ξ (Δz fibre ) = ξ fac (Δz fibre )ξ fibre (Δz fibre ) (2) The first behaviour studied was the laser tuning resulting from index adjustment of the front and rear DBRs. This creates a tuning curve of alternating continuity, and steps due to the differential tuning rates of the DBR and Fabry-Perot modes of the laser cavity, and is illustrated in [11,Fig. 7] and Fig.…”

“…For φ RT = Nπ, the coupled light degrades the stability of a mode, reducing Δλ len . Δλ jum tends to vary little with ξ tot , only changing to keep the average tuning curve the same [11], [16, ch. 5].…”

“…Only the longitudinal spatial dimension (z) is considered to reduce computational load; the effect of transversal (x, y) field distribution is approximated by the effective index and confinement factor. Due to the longitudinal division of the A review of this method, and the particular properties of our program is given in [11]. The parameters used in the TW program are given in Table I.…”

“…Calibration of ν ROF to the experimental values was therefore achieved via the parameters N tr , N s and η, and the calibrated values are given in Table I. Although the recombination constants A, B, C also affect the gain and ν ROF , we used values from [11], [23] and we did not vary them in the calibrations…”

“…The parameters of phase, detuning and in particular coupling magnitude are more difficult to predict for PICs than in discrete systems. In addition, modeling the dynamics of such complex coupled systems is best approached using travelling wave (TW), or similar methods [3], [8], [11]. Therefore PICs offer both great hope for robust practical implementations of systems utilising coupled laser dynamics, while presenting a challenge in terms of both modelling and experimentation.…”