Where to Buy Hollow-core Fibers

Optical signals in a hollow core photonic bandgap fiber are guided in an air core surrounded by a PBG microstructured region. In addition to the low bend sensitivity, this fiber design exhibits significantly reduced material nonlinearities since more than 95% of optical power is propagating in air. In addition, air/undoped silica provides excellent temperature immunity, which is critical for high performance fiber sensing and metrology applications.

Optical signals in a hollow core anti-resonant fiber propagate in an air core surrounded by a single ring of anti-resonant tube elements. Guidance is based on an anti-resonance from the thin glass membranes constituted by the non-touching tubes surrounding the hollow core. The extremely low overlap of guided power with the surrounding silica, less than 2 · 10⁻⁵, in addition to the large effective mode area, leads to a record-low optical nonlinearity.

Guiding Photonics fabricates hollow core fibers with a metallic reflective coating on the inner side of a hollow glass or plastic tube. For infrared transmitting fibers, there is also a dielectric layer with a thickness optimized for a specific wavelength range.

Hollow-core photonic bandgap fibers turn conventional fiber technology inside out by guiding the light in a hollow-core. This unique waveguide is ideal for sensing, imaging, and ultrashort pulse applications. Our hollow-core photonic bandgap fibers deliver ultrashort pulses without non-linear effects or material damage and tolerate tight bending without impact on transmission. Hollow-core fibers are radiation insensitive and suitable for harsh radiation environments.

The new few-cycle flexible hollow core fiber system allows you to choose various fiber lengths and inner diameters to achieve a desired nonlinear effect. Experimentally measured transmission for multi-mJ femtosecond pulses ranges between 50% and >90%, depending on the application.

The most versatile choice for laser pulse post compression: The few-cycle hollow core fiber supports input energies from 50 μJ to 100 mJ, up to 20 times compression and transmission >90% while keeping the footprint and optical path length at a minimum.

UltraFast Innovations (UFI) offers complete hollow-core fiber compressors for compressing high-energy ultrashort pulses by nonlinear spectral broadening in a gas within the hollow-core fiber and subsequent compression with chirped mirrors.