Mode-locking pulse generation based on lead-free halide perovskite CsCu₂I₃ micro-rods with high stability

Abstract

A CsCu 2 I 3 SA-based passively mode-locking fiber laser was demonstrated. The fiber laser could operate stably for at least five months, which will potentially unlock the pathways for ultrafast photonics based on lead-free halide perovskites.