Numerical investigation of steering synchronization dynamics of laterally coupled laser array with monolithically-integrated external cold cavity.

This study numerically explores the synchronization dynamics of a one-dimension edge-emitting laser array monolithically-integrated with an external cold cavity comprehensively, aiming to achieve an in-phase mode optical field. By employing the optical feedback rate equation, the impact of mutual feedback coefficient and coupling coefficient on the synchronization process are investigated thoroughly. The proposed external cold cavity, designed according to the Talbot effect, could significantly diminish the reflectivity of front facet through separated electrode structure, therefore facilitating the phase-locking process.

Effect of torso training on unstable surface on lower limb motor function in patients with incomplete spinal cord injury.

Objectives: To investigate the effect of torso training on unstable surface on lower limb motor function in patients with incomplete spinal cord injury.

Methods: A total of 80 patients with incomplete spinal cord injury caused by thoracolumbar fracture admitted in Ningbo Yinzhou No.2 Hospital from April 2020 to December 2021 were randomly divided into control group and study group, with 40 cases in each group.