We describe the history, guiding mechanism, recent advances, applications, and future
prospects for hollow-core negative curvature fibers. We first review one-dimensional slab …

Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative
curvature of the core-cladding boundary and with cladding that is formed by a one ring layer …

We demonstrate a 2.8 μm gas Raman laser in a methane-filled hollow-core negative-
curvature fiber with average power of 113 mW, pulse energy of 113 μJ and estimated peak …

In this paper, we report the use of a 3-meter low-loss anti-resonant hollow-core fiber (AR-
HCF) to deliver up to 300 W continuous-wave laser power at 1080 nm wavelength from a …

Rare-earth-doped fiber lasers at 3–5 μm can provide a variety of applications in defense,
security, medicine, and so on. Limited by the maximum phonon energy of silicate glass host …

We report here for the first time, to the best of our knowledge, a novel and efficient cascade
Raman laser source operating at 2.8 μm by two stages of methane-filled hollow-core fibers …

The synthesis of multiple narrow optical spectral lines, precisely and independently tuned
across the near-to mid-infrared region, is a pivotal research area that enables selective and …

We demonstrate a multi-watt, picosecond pulse duration laser source by exploiting a
cascaded Raman process to the second Stokes signal at a wavelength of 2.58 μ m in a …

In this work, we develop a high energy laser at 1.4 μm wavelength through the 1st order
vibrational Raman Stokes generation in a nitrogen (N2) filled nodeless anti-resonant hollow …

We report here an efficient watt-level tunable 1.7 µm fiber gas Raman laser. Pumped by a
homemade pulsed fiber amplifier around 1.5 µm wavelength, a tunable laser ranging from …