Detailed modulation response analyses on enhanced single-mode QWS-DFB lasers with distributed coupling coefficient

The Static and Dynamic Transfer-Matrix Methods in the Analysis of Distributed-Feedback Lasers

“…This last aspect is referred in (Jia et al, 2007) for the QWS-DFB laser in the transient response to a step-like biasing current whose final state value is 90 mA. I = The oscillations in the emitted power arise from beating frequency of multiple mode lasing.…”

“…t Δ Dynamic-TMM analysis reinforces the relevance of the questions related to the need of decreasing the heavy simulation times arising from the intensive search for those laser parameters that complies with the boundary conditions of the problem under analysis. For typical lengths of hundred of micrometers and data rate less than about 40 Gb/s, simulation analysis requires no more than 100 M = sections to guarantee enough method accuracy (Jia, X. et al, 2007). The model solves self-consistently the carrier and photon rate equations similarly as described in Section 3.1.…”

Analysis of Phase-Shift DFB lasers using the dynamic transfer-matrix-method

“…For typical lengths of hundred of micrometers and data rate less than about 40 Gb/s, simulation analysis requires no more than 100 sections to guarantee enough method accuracy [12]. The model solves self-consistently the carrier and photon rate equations.…”

Dynamic Response of Two-Electrode Distributed Feedback Laser for Stable Signal Mode Operation

“…Usually a variety of methods can be used to solve this issue, the first one consisted in enlarging the threshold gain margin by introducing gain coupling mechanism or constructing distributed coupling coefficient gratin (DCC-DFB) [17][18][19][20], the second is to weaken the no uniform distribution of carriers, for example they can be obtained by utilizing multiple discrete phase shift (MPS-DFB) [21] or by introducing longitudinal chirped grating for bragg period [5], [22] and [23].…”