Optical computing photonic hardware accelarators aims to create faster and more efficient computing systems and artificial intelligence systems. Optical computing utilizes light instead of electricity to transmit data, which can potentially lead to significant increases in speed and power efficiency. On-chip lasers play a crucial role in this field by providing the necessary light sources on the same single chip. The development of on-chip lasers requires a multidisciplinary approach, combining expertise in materials science, computer science, and photonics. Despite the challenges involved, the potential benefits of on-chip lasers for optical computing make this area of research highly promising.