
Specialty optical fibers
In the face of the world's most intricate challenges, Exail leads the future, developing innovative and reliable specialty optical fibers with cutting-edge technology.
The demand for specialty optical fibers grows, driven by the intricate needs of cutting-edge applications. From laser, sensing, communication, to space endeavors, Exail's expertise ensures unparalleled quality in the most complex environments. As a leading manufacturer, Exail is dedicated to achieving maximum performance levels, offering a complete and integrated solution—from crafting glass preforms and optical fibers to supplying cutting-edge fiber lasers.
Innovating specialty optical fibers for the world's most demanding and harsh environments
Laser and amplifiers fibers
Elevate your laser systems with Exail's diverse range of rare earth-doped fibers, including Ytterbium, Erbium, Erbium/Ytterbium, and Thulium variants, complemented by carefully matched passive fibers.
Our laser and amplifier fibers boast superior mode quality, efficient pump light absorption, extended lifetime, and remarkably low photodarkening. Rely on Exail for consistent, high-performance operation, even in the most challenging applications.


PM, polarizing and spun fibers
Unlock precision and performance with Exail's PM, polarizing, and spun fibers. Crafted for high-performance interferometric, polarimetric sensors, and integrated optics, Exail's industry-leading polarization maintaining fibers redefine excellence.
Our fibers, tailored to the specific needs of fiber-optic gyroscopes, current sensors, transformers, polarizers, and more, ensure optimum performance for each application. Making us the trusted provider for the world's most critical applications.
Harsh environments fibers
Exail offers active and passive optical fibers designed for use in harsh environments with high radiation levels and/or extreme temperatures. Designed for harsh conditions like nuclear facilities, oil & gas, high-energy labs or space, Exail's specialty optical fibers excel in data transmission, sensing, and in-vitro diagnosis.
Combining Exail’s unique expertise in radiation-hardened silica together with advanced coatings such as polyimide and aluminum, these harsh environment fibers ensure optical and mechanical integrity of the fiber in the most demanding environmental conditions.


Single mode and multimode fibers
Exail stands at the forefront of specialty optical fiber innovation, offering a diverse range that caters to multimode, single mode, photosensitive and multicore fibers. From UV solarization resistant fibers to high-NA bend-insensitive fibers, Exail offers a wide range of commodity fibers with various NA, cladding diameter, coating material, core geometry and composition, for tailored performance from 375 nm to 2300 nm.
Learn morePhotonic crystal fibers
Collaborating with Photonics Bretagne, Exail offers a diverse range of Photonic Crystal Fibers (PCF) for applications such as high-power delivery, low latency telecommunication, gas sensing, or supercontinuum generation.
Hollow core fibers benefit from low dispersion and non-linearities and are ideal to transport pulsed signals with minimal pulse distortion. Solid core fibers with tailored microstructures offer broadband singlemode operation across the VIS-NIR range with large core size and a well-controlled dispersion profile, finding applications in f-2f conversion, transport of laser light, or supercontinuum generation.
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Custom fibers
Leverage Exail's expertise in specialty optical fibers and FBG to tailor a solution that meets your unique requirements. Our comprehensive services encompass splicing for specialty fibers, covering high power, large diameter, PM, and tapers, accompanied by tailored recoating and packaging solutions. Each sub-assembly undergoes rigorous validation, including efficiency and temperature testing, culminating in a detailed test report for final qualification.
Explore design customization possibilities through R&D contracts, backed by confidentiality agreements, and benefit from our extensive capabilities