Visualization 1: Mode instability dynamics in high-power low-numerical-aperture step-index fiber amplifier

The video of near-field beam-profile under different output power recorded by the HSC is shown in Visualization 1. Originally published in Applied Optics on 01 July 2017 (ao-56-19-5412

Visualization 2: Mode instability dynamics in high-power low-numerical-aperture step-index fiber amplifier

The variations of the measured and corresponding reconstructed beam profiles with the output power of 585 W and 800 Ware shown in Visualization 2 and Visualization 3 respectively. Originally published in Applied Optics on 01 July 2017 (ao-56-19-5412

Visualization 3: Mode instability dynamics in high-power low-numerical-aperture step-index fiber amplifier

The variations of the measured and corresponding reconstructed beam profiles with the output power of 585 W and 800 Ware shown in Visualization 2 and Visualization 3 respectively. Originally published in Applied Optics on 01 July 2017 (ao-56-19-5412