2\mu m Solid-State Laser Mode-locked By Single-Layer Graphene

TL;DR

This paper demonstrates a 2μm ultrafast solid-state laser mode-locked by single-layer graphene, producing 410fs pulses with high power and spectral width, suitable for medical and industrial applications.

Contribution

It presents the first demonstration of a high-power, transform-limited 2μm laser mode-locked by single-layer graphene.

Findings

Pulse duration of 410 femtoseconds.

Maximum output power of 270 milliwatts.

Spectral width of 11.1 nm at 2067 nm.

Abstract

We report a 2\mu m ultrafast solid-state Tm:Lu2O3 laser, mode-locked by single-layer graphene, generating transform-limited~410fs pulses, with a spectral width~11.1nm at 2067nm. The maximum average output power is 270mW, at a pulse repetition frequency of 110MHz. This is a convenient high-power transform-limited laser at 2\mu m for various applications, such as laser surgery and material processing.