Eye Safe 25P/400 Thulium Doped LMA Double Clad Fibers
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Smart Product Number: LMA-TDF-25P/400-M
Eye Safe 25P/400 Thulium Doped LMA Double Clad Fibers
Nufern introduces the newest series of large-mode area, high efficiency Thulium-doped double clad fibers inspired from the most recent advances in thulium-doped technology. The glass composition is improved to maximize the cross-relaxation process in order to achieve 2 mm efficiencies around 60% and higher when pumping at ~793 nm. In combination with the 400 mm, 0.46 NA pump cladding design, these fibers are ideal candidates for high power laser and amplifier applications. In addition, the core & pedestal waveguide design are specifically tailored to offer improved single-mode beam quality via efficient higher-order mode suppression while ensuring highly reliable splicing and easy handling and cleaving. Both fibers feature a 25 µm core (0.09 NA) and a 400 µm clad diameter allowing for a large mode field diameter and short device lengths thereby minimizing non-linear effects such as SBS and SRS. The LMA-TDF-25P/400-M fiber is compatible with the NuMATCH passive fiber family offering unique compatibility performances at 2 µm. The fiber design is also available in polarization maintaining design (PLMA-TDF-25P/400-HE).
Optical Specifications
Operating Wavelength
1900 – 2100 nm
Core NA
0.090 ± 0.010
First Cladding NA(5%)
≥ 0.460
Cladding Attenuation
≤ 15.0 dB/km @ 860 nm
Cladding Absorption
0.65 ± 0.15 dB/m at 1180 nm
2.00 dB/m at 793 nm
Geometrical & Mechanical Specifications
Cladding Diameter
400.0 ± 10.0 µm
Core Diameter
24.0 ± 1.5 µm
Coating Diameter
550.0 ± 15.0 µm
Core/Clad Offset
≤ 2.00 μm
Coating Material
Low Index Acrylate
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low-index polymer NuCoat-FA.
[ COLLAPSE ALL ]
Features & Benefits
- Improved core composition — High power and high efficiency performances
- Optimized LMA core & pedestal design — robust single-mode beam quality
- NuCOATFA™ fluoroacrylate coating — Greater fiber durability in extreme operating and storage conditions
- All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability when coiling
Typical Applications
- High power 2 µm CW and pulsed lasers & amplifiers
- Eye Safe industrial & medical lasers
- Military and commercial LIDAR
- Pumping of Ho-doped lasers & amplifiers
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.
SPECIFICATION SHEETDOWNLOAD
Technical Information
Brochures NuMATCH Flyer [PDF] NuTDF [PDF] |
Optical Specifications
Operating Wavelength
1900 – 2100 nm
Core NA
0.090 ± 0.010
First Cladding NA(5%)
≥ 0.460
Cladding Attenuation
≤ 15.0 dB/km @ 860 nm
Cladding Absorption
0.65 ± 0.15 dB/m at 1180 nm
2.00 dB/m at 793 nm
Geometrical & Mechanical Specifications
Cladding Diameter
400.0 ± 10.0 µm
Core Diameter
24.0 ± 1.5 µm
Coating Diameter
550.0 ± 15.0 µm
Core/Clad Offset
≤ 2.00 μm
Coating Material
Low Index Acrylate
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: Low-index polymer NuCoat-FA.
[ COLLAPSE ALL ]
Features & Benefits
- Improved core composition — High power and high efficiency performances
- Optimized LMA core & pedestal design — robust single-mode beam quality
- NuCOATFA™ fluoroacrylate coating — Greater fiber durability in extreme operating and storage conditions
- All fiber proof tested to > 100 kpsi — Critical for ensuring long term reliability when coiling
Typical Applications
- High power 2 µm CW and pulsed lasers & amplifiers
- Eye Safe industrial & medical lasers
- Military and commercial LIDAR
- Pumping of Ho-doped lasers & amplifiers
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.
SPECIFICATION SHEETDOWNLOAD
Technical Information
Brochures NuMATCH Flyer [PDF] NuTDF [PDF] |