Relation between tuning characteristics and bistability characteristics of H parameter simplified model

In order to study the relation between tuning characteristics and bistability characteristics, after establishing H parameter simplified model and taking carrier density for the characteristic of threshold, an analytical expression for the tuning range was derived.Then the maximum residual reflectivity for anti-resonance was analyzed,the effect of reflectivity in laser output terminal and residual reflectivity on tuning range and hysteresis loop width was simulated, and the maximum hysteresis loop width was obtained.Based on the model,the relation between tuning and bistability characteristics can be clarified.