Graphdiyne-Based All-Solid-State Passively Q-Switched Tm:YAP Laser at 2 mu m

All-solid-state Tm lasers have a wider wavelength range and higher output power compared to other types of lasers. In this work, we demonstrate an all-solid-state, high repetition, Tm:YAP laser Q-switched by a graphdiyne (GDY) saturable absorber. The high-quality optical nonlinear material GDY, synthesized by a cross-coupling method, exhibits a strong nonlinear optical response. The application of GDY as a saturable absorber in the passively Q-switched (PQS) Tm:YAP of an all-solid-state laser has been realized with the shortest pulse duration of similar to 785 ns and repetition frequency of similar to 199.6 kHz at a central wavelength of 1985.8 nm. This represents the shortest pulse duration and the highest repetition frequency achieved from GDY in a solid-state Tm laser to date. Our work demonstrates the remarkable nonlinear optical properties of GDY, which holds promising potential in the field of optoelectronics.

Automated summary

In this work, an all-solid-state Tm:YAP laser Q-switched by a graphdiyne (GDY) saturable absorber is demonstrated, achieving the shortest pulse duration and highest repetition frequency from GDY in a solid-state Tm laser to date. The study shows the remarkable nonlinear optical properties of GDY, indicating its promising potential in the field of optoelectronics.