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Optical Fiber, Coil Winding, Lasers and Amplifiers

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Eye Safe Wavelength Optical Fibers

With the advent of doping technologies allowing the 2-Photon pumping effect for high efficiency energy conversion the intrinsic safety of longer wavelength lasers has become a reality.

Optical efficiencies of over 60% for Tm (λ 2μm) now approach that of Yb (λ 1μm) opening safer, more user friendly industrial and aerospace markets.

Optical Benefits

  • High peak powers with reduced susceptibility to Stimulated Brillouin Scattering (SBS) & other non-linear effects
  • λ1550nm  -  λ 2150nm operating wavelengths

Optical Benefits

  • Tm doped fibers using the 2-Photon effect achieve quantum efficiencies of > 60% when pumped at λ 793nm
  • Er-Yb doped fibers achieve quantum efficiencies of > 35% when pumped at λ 976nm

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 specialty multi-mode fibers are ideal for a variety of diverse applications. They are capable of withstanding extreme...

$2.95 per meter
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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.