Enquan Zhang, Jianmei Shi, Yihang Chen, Juntian Cao, Zhengqi Geng, Haoran Wen, Qizhi Zhang, Zongyi Li, Yunxiang Zhong, Yingqiang Xu, Haiqiao Ni, Donghai Wu, Chengao Yang, Zhichuan Niu
Achieving power scaling while maintaining high beam quality remains a key challenge for laser arrays. In this work, we demonstrate an antimonide phase-locked laser array integrated with a Talbot cavity based on a diffraction-coupling scheme. A seven-element phase-locked laser array was designed and fabricated, achieving a maximum power of 812 mW under continuous-wave (CW) operation at 288 K. The measured lateral far field exhibits a near diffraction limited (D.L.) beam divergence of 1.86° and dominant in-phase mode operation from the threshold current to full power current, confirming stable supermode selection capability. Benefiting from robust supermode control, efficient thermal management, and high fabrication tolerance, the phase-locked array shows great potential for high-brightness laser sources.