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TM

NuPOWER flyer - 29526 Controlling the Intensity of Light

NuPOWER fibers offer the performance, stability and features your applications demand Long Life Single Polarization

• Designed for no service in first 20,000 hours • Hundreds of deployed lasers and amplifiers • Extreme power stability (

Broadest Selection Highest Performance

• Wavelength (NIR to 2.3

μ

m) • Core & clad sizes from 4 to 700 • High conversion efficiency • Narrow linewidth (kHz) • Highest brightness • Easy to achieve single mode TEM

μ

m • Special designs including Chiral Core, Large Flattened Mode (LFM) and Multi-core

00

How a Fiber Laser Works

θ , at which light is accepted is determined by the numerical aperture (NA) which is dependent upon the refractive indices of the fiber clads, n

and n 1

NA = n

2 2

sin θ = n

-n 1

Laser light leaves the smaller core areaThe angle, Low NA output of the fiber yields a high brightness, low divergence, single mode beam The high NA input of the double clad structure provides a broad acceptance angle for low brightness pump energy to enter the large pump clad Pump light is absorbed by a rare earth ion in the core and converted into laser light; coiling is used to suppress higher order modes High Optical EfficiencyBroadest Selection of Fibers

Core Design Operating Wavelength Polarization Maintaining

1.0 μ m1.5

Single ModeMultimodeLarge Mode Area (LMA)Large Flattened Mode (LFM)Chiral CoreMulticore

μ m1.5 μ m2.0 μ m1.0 μ m1.5 μ m2.0 μ m1.0
Signal Power μ m1.0 μ m1.0 μ m PM and non-PMPM and non-PMnon-PMnon-PMPM and non-PMPM and non-PM PM and non-PMnon-PMnon-PM non-PM

Pump Power

It’s what’s inside that counts.

7 Airport Road, East Granby, CT 06026 Toll Free: 866.466.0214 | Tel: 860.408.5000 | Fax: 860.844.0210 |

NU0112-01/07

www.nufern.com