Specialty Optical Fibers for Advanced Systems

Reliable specialty fibers for demanding and harsh environments
Different optical systems bring unique challenges. Whether you are developing high-power lasers, precision inertial navigation units, spaceborne amplifiers, or distributed sensors in harsh environments, optical fiber performance directly impacts your system's reliability and efficiency.
Exail offers an extensive range of specialty optical fibers — from active rare-earth doped fibers (Yb, Er, Tm, Ho, Nd) covering 0.9 µm to 2.2 µm wavelengths, to high-birefringence PM gyro fibers and radiation-hardened solutions built for extreme conditions.
Rare-Earth Doped (Specialty) Fibers
Active gain media (Yb, Er, Er/Yb, Tm, Tm/Ho, Nd, Raman) designed for low threshold, high efficiency, and high power handling.
- High-power & industrial lasers
- Optical coms & amplifiers
- LIDAR & medical systems
Harsh Environment & Sensing Fibers
Specialty fibers designed for reliable operation under high temperatures, vacuum, and corrosive environments.
- Nuclear & fusion facilities
- High-energy experiments
- Temperature monitoring
Polarization-Maintaining and Gyro Fibers
Precision PM fibers featuring high birefringence, high extinction ratios, and tight geometrical control for polarization-sensitive devices.
- Fiber Optic Gyroscopes (FOG)
- Inertial navigation systems
- Precision optical sensing
Rad-Resistant & Space-Grade Fibers
Dedicated fiber compositions and coatings qualified to resist radiation-induced attenuation and thermal constraints.
- Space optical communications
- Spaceborne laser systems
- Rad-hard optical amplifiers
Engineered for Critical Applications
Choosing the right optical fiber takes more than a wavelength
Identifying the optimal fiber depends on much more than the target emission wavelength. Key performance factors include:
- Optical parameters: power handling, pump configuration, core architecture, and polarization extinction ratio (PER)
- Environmental constraints: radiation tolerance, operating temperature ranges, and mechanical stress.
That’s where Exail’s application expertise makes the difference. Our specialists help you navigate our full specialty fiber portfolio—active rare-earth doped, high-birefringence PM, and radiation-resistant designs—to match your exact system architecture.
Trusted in the world's most extreme environments
Exail specialty optical fibers and components are deployed at the heart of landmark scientific and industrial programs worldwide. Designed to withstand severe radiation levels, extreme thermal gradients, and ultra-high pulse energy, our technologies equip major fusion reactors and mega-joule class high-energy laser facilities—including ITER, the Laser Mégajoule (LMJ) at the CEA, and the Lawrence Livermore National Laboratory (LLNL NIF). From deep-space observation and telecom missions with ESA to strategic defense and nuclear sensing applications, our fibers operate continuously in environments where performance and zero-failure reliability are non-negotiable.
proven Fiber Expertise
450+
Standard catalog fibers available off-the-shelf
30+
Years of expertise in fiber manufacturing
+400°C
Max operating temperature, starting from cryogenic
>1000
Km of optical fiber operating in orbit (GEO/LEO)












