Temporal cavity solitons in a laser-based microcomb: a path to a self-starting pulsed laser without saturable absorption

We theoretically present a design of self-starting operation microcombs based on laser-cavity solitons in system composed micro-resonator nested and coupled to an amplifying laser cavity. demonstrate that it is possible engineer the modulational-instability gain system’s zero state allow start-up with well-defined number robust solitons. The approach can be implemented by using parameters, such as cavity length mismatch shape, control repetition rate generated Because setting does not require saturation gain, results offer alternative standard techniques provide mode-locking.