Numerical model of on-chip mode-locked lasers for millimeter wave generation

We present the successful achievement of the numerical model of on-chip mode-locked lasers for millimeter wave generation by using the simulation tool called FreeTWM, which is a free travelling wave model software designed for the study of the dynamics of multi-section semiconductor lasers based on Matlab. We have been able to reproduce the performance of different kind of on-chip mode-locked lasers with a repetition rate within the millimeter wave frequency range. On one hand, we have achieved the successful simulation the on-chip colliding pulse mode-locked laser working at 70 GHz due to the fact that the collision in the saturable absorber located in the middle of the resonator multiply by two the fundamental frequency of 35 GHz. On the other hand, we obtained the fruitful performance of the on-chip multiple colliding pulse mode-locked laser working at 100 GHz thanks to the harmonic mode-locked structure which multiply by four the fundamental repetition rate of 25 GHz, obtaining the 100 GHz operation. As a result, the Free TWM software is a promising candidate for the simulation and optimization of on-chip mode-locked lasers for Millimeter Wave Generation. Thus, we will avoid spending time and money on foundries and multi project wafer runs due to the fact that it will not be necessary to fabricate many devices in order to obtain an ideal device so we will perform the optimization by using the numerical models implemented on the FreeTWM software.