Fig. 6: The scalability of continuous power transmission of AR-HCF in 1 μm spectral band, which is limited by SRS amplified within the silica nested tubes.
From: All-fiber highly efficient delivery of 2 kW laser over 2.45 km hollow-core fiber

The spectral profile was determined based on the standard approximation of the SRS critical power (see Methods). The different colors in the figure corresponds to the core diameter of AR-HCF. The orange pentagram represents the transmission power and effective transmission length corresponding to this work. Only the fundamental mode excitation is considered in the figure.