Optran® WFNS – Low-OH Silica Fibers for VIS-NIR (300–2400 nm)

Low-OH all silica fibers such as Optran® WF and Optran® WFNS are engineered for high-performance light transmission from the visible to the near-infrared (VIS–NIR) and, for WFNS, down to the ultraviolet (UV). With spectral coverage from 300–2400 nm, low attenuation, and robust mechanical characteristics, these fibers support a wide range of demanding applications in scientific, industrial, medical, and OEM systems.

• Fiber-fed spectrographs for multi-object and high-resolution stellar spectroscopy in the VIS–NIR range.
• Integral field units (IFUs) and fiber bundles for spatially resolved spectroscopy in telescopes.
• Guiding and calibration systems transmitting reference lamp and laser light to focal planes.
• Stellar and solar astronomy measurements where low attenuation and stable transmission are critical over long fiber runs.
• Fiber links between telescope and remote instrumentation in observatories requiring broad spectral coverage and low-OH content.

• UV–VIS–NIR spectroscopy for chemical, environmental, and process analysis (e.g., absorption, fluorescence, emission).
• Raman spectroscopy in the VIS–NIR, benefiting from low background and low OH-induced attenuation.
• NIR spectroscopy for moisture, protein, and material content analysis in food, pharma, and agriculture.
• Fiber-optic probes for in-line and at-line spectroscopic monitoring in reactors and pipelines.
• Chromatography detectors and optical sensor interfaces linking flow cells to benchtop spectrometers.
• Optical bench interconnects for compact OEM spectroscopy modules and photometric systems.

• NIR laser beam delivery for diode, fiber, and solid-state lasers operating in the 700–2400 nm range.
• Pulsed and CW laser transport in laboratory setups and industrial workstations where stable, low-loss delivery is required.
• Laser-based measurement and metrology, including interferometry and precision alignment systems.
• Excitation light delivery for fluorescence, photoacoustic, and pump–probe experiments from UV to NIR (WFNS).
• Beam routing in compact OEM laser modules and integrated photonic systems.

• Endoscopic illumination and imaging using VIS–NIR light for diagnostics and minimally invasive procedures.
• Laser therapy and surgical delivery (e.g., dermatology, ophthalmology, ENT, dental, and soft-tissue applications).
• Photodynamic therapy (PDT) requiring controlled light delivery in VIS–NIR bands.
• Biomedical spectroscopy (reflectance, fluorescence, NIR) for tissue characterization and non-invasive diagnostics.
• Fiber-based sensors in catheters and probes for monitoring oxygenation, perfusion, and other physiological parameters.

• Process control and inline monitoring in chemical, petrochemical, and pharmaceutical plants using NIR/UV–VIS spectroscopy.
• Combustion and emissions monitoring in engines, turbines, and furnaces where fibers must withstand elevated temperatures.
• Structural health monitoring with fiber-based sensors (e.g., Bragg gratings, interferometric sensors) operating in the VIS–NIR.
• Industrial machine vision and illumination for inspection systems needing stable broadband light delivery.
• Environmental sensing for water quality, gas detection, and pollutant monitoring using UV–NIR spectroscopic techniques.

• Broadband light transport from lamps, supercontinuum, and LED sources to experimental setups.
• UV–VIS–NIR pump and probe routing in time-resolved spectroscopy and ultrafast experiments (where allowed by power and bend-radius limits).
• Fluorescence and luminescence studies requiring low background and stable transmission across a wide spectral range.
• Quantum optics and photonics experiments where low-OH silica minimizes parasitic absorption and scattering.