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Optical Fiber, Coil Winding, Lasers and Amplifiers

Eye Safe Wavelength Optical Fibers

Through the optimization of doping technologies, allowing for the generation of two signal photons for every pump photon, efficient laser devices operating at eye safe wavelengths have become a reality.

Optical efficiencies of over 60% for Tm (2μm) fibers opens new applications in the Industrial, Medical, and Defense markets.


Optical Benefits

  • Large Mode Area (LMA) designed for reduced susceptibility to non-linear effects
         - Er & Er/Yb doped fibers: 1530nm - 1625nm
         - Tm doped fibers: 1908nm - 2100nm
         - Ho doped fibers: 2000nm  - 2150nm

Optical Benefits

  • All products in this family are noted for high optical efficiency:
         - Tm doped fibers - efficiencies of > 60% when pumped at 793nm
         - Ho doped fibers - efficiencies approaching 60% when pumped by a Tm fiber laser at 1950nm
         - Er/Yb doped fibers - efficiencies > 40% without 1 μm ASE

Mechanical Benefits

  • All Nufern EyeSafe laser and amplifier fibers are made with silica doped cores and synthetic quartz cladding yielding maximum strength and fatigue failure resistance.

Mechanical Benefits

  • All EyeSafe fibers offer telecom life expectancies and use GR-20 rated materials and processes for long life in application.


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Optical Fibers


Nufern’s 1550B-HP high-performance select cutoff bend insensitive single-mode fiber is optimized for use in small form factor...

$3.15 per meter

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Tour Nufern
March 23, 2016

Optical Fibers Fiber Lasers Fiber Amplifiers Defense Technology Coil Winding Educational Components

Specialty Optical Fiber: Strong and Stable

As the world's leading manufacturer of application-specific specialty optical fiber, Nufern is committed to excellence in the design and manufacture of specialty optical fiber. Our portfolio of standard products includes over 100 application-specific optical fibers,  including, rare earth doped optical fiber for lasers and amplifiers, gyroscope optical fiber and other polarization maintaining optical fiber, extreme duty and radiation hard optical fibers for aerospace, as well as photosensitive and other single-mode optical fiber

Nufern's Fiber Lasers

Nufern’s laser technology offers the highest in efficiency, beam quality, and lifetime performance–in packages always designed with the needs of real users in mind. With a team of leading experts in laser engineering and specialty fiber design, Nufern has long been a preferred supplier of the active fibers that power the most advanced high-power fiber lasers. Now with a family of self-contained fiber laser systems, Nufern can address the next level of integration. End users of fiber lasers will enjoy the high performance and reliability common to all Nufern lasers, combined with unprecedented ease of use.

Nufern's Fiber Amplifiers

Nufern’s fiber amplifiers offer a unique approach to optical signal gain challenges by offering stable, high peak power monolithic solutions. Polarization maintaining amplifiers from Nufern, with very high signal extinction ratios, are unmatched in performance, from low power applications to multi-stage amplifiers capable of hundreds of watts of TEM00 power. Based on 100% prooftested Nufern double-clad fiber, these packaged solutions simplify the most difficult optical amplification problems—reducing program costs, complexity, and time to completion.

NukW — Harnessing Diffraction Limited Laser Power

Building on recent success by many in deploying multimode industrial fiber lasers in defense applications Nufern has produced a family of compact high performance diffraction limited single-mode high power fiber amplifiers.

Delivered turnkey from our US operations these systems provide requisite high beam quality, high efficiency, and narrow linewidth making them ideally suited for spectral or diffraction beam combination applications.  Deployment is facilitated using a patent pending remote power head connected ~ 10m distally to the preamp and diode chassis.

Fast support is available from our 3 per week production capacity, air freight compatible rental unit, and rental access to a Nufern manned multi-unit bench at our Connecticut headquarters.

Fiber Coil Winding

With a 25 year legacy of winding all types of precision optical fiber coils, the coil winding business unit offers a team of highly experienced scientists, engineers, and winders, together capable of winding the best in optical fiber coils. Cost effective and fast winding systems allow Nufern to provide a complete range of products, from simple delay lines and payout spools to strategic quadrupole gyro coils of several kilometers in length.

Nufern's NuEDU Educational Components

For many years Nufern & its diverse partners have enhanced high power Large Mode Area fiber laser and amplifier technology for the benefit of all manner of optical fiber laser and amplifier applications. The tools developed and used in our own labs provide scientists, engineers, and technicians apparatus to safely and easily obtain the best optical results, reuse valuable fibers, and easily adjust and adapt key performance parameters necessary to understand and develop products.