PM-GDF-1550

High power 1550 nm amplifiers based on double clad Er/Yb fibers are widely used in CATV and Telecom applications. The 1550 nm passive double clad fiber is ideal for use both as a pump and signal output fiber in combiners and as a laser delivery fiber. The high cutoff, bend insensitive design of this fiber ensures excellent signal confinement, while allowing for low splice loss to Er/Yb doped double clad fibers and industry standard SMF-28™ fiber. They are available in both non-PM design for traditional high power amplifiers and in PANDA-style PM design for high power coherent communications and frequency conversion applications.

Optical Specifications

Operating Wavelength

1450 – 1600 nm

Core NA

0.120

First Cladding NA(5%)

≥ 0.46

Mode Field Diameter

10.5 ± 0.7 µm @ 1550 nm

Cutoff

1440 ± 80 nm

Core Attenuation

≤ 2.0 dB/km @ 1550 nm

Cladding Attenuation

≤ 15.0 dB/km @ 1095 nm

Birefringence

2.5 × 10^-4

Geometrical & Mechanical Specifications

Cladding Diameter

130.0 ± 1.0 µm

Core Diameter

9 µm

Coating Diameter

245.0 ± 10.0 µm

Coating Concentricity

< 5.0 µm

Core/Clad Offset

≤ 0.50 μm

Prooftest Level

≥ 100 kpsi (0.7 GN/m²)

Comments

Coating Requirements: Low Index Polymer Coating
Other Requirements: Round Fiber. Polarization-maintaining fiber with daul circular stress regions.

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Features & Benefits

NuCOAT fluorocrylate coating – Greater fiber durability in extreme environmental operating & storage conditions
Exceptional uniformity and core/clad concentricity — Low connectorization losses
Bend insensitive — Survives application in tight confines
All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability

Typical Applications

CATV and Telecom amplifiers
Laser delivery / fluorescence

Nufern’s optical fiber products, including rare-earth doped, gyro, polarization-maintaining, radiation resistant, photosensitive, multimode and single mode, and any other optical fiber product including custom optical fibers, may be covered by one or more of the following pending or issued U.S. Patents, each of which is owned by or licensed by Nufern:

6,779,364; 6,832,026; 6,904,214; 6,950,586; 7,003,206; 7,050,686; 7,062,137; 7,110,647; 7,116,887; 7,167,621; 7,317,857; 7,371,019; 7,386,210; 7,400,812; 7,483,610; 7,634,164; 7,724,422; 5,949,941 (licensed from Furukawa Electric Co. of North America).

Moreover, use of Nufern’s optical fiber products, including modifications thereof, combinations with other products, or certain specific uses can necessitate additional customer licensing, particularly with respect to U.S. Patent nos. 5,818,630 (IMRA America, Inc.) and 6,496,301 (The United States of America as represented by the Secretary of the Navy). See the terms and conditions specific to your purchase.

Learn More

Call us at: 860-408-5000

Toll-free: 866-466-0214

Specification SheetDOWNLOAD

Optical Fibers