C-Band & L-Band Photosensitive Erbium-Doped Fiber0 pages

C-Band & L-Band Photosensitive
Erbium-Doped Fiber
Nufern’s high performance PS-ESF-3/125 is the ideal fiber for distributed feedback (DFB) and distributed Bragg reflector
(DBR) lasers. Engineered to be inherently photosensitive, these fibers enable short device lengths and good pump
conversion efficiency. Variants of this fiber with higher gain and/or photosensitivity are available upon request as custom
products.
Typical Applications
Features & Benefits
• Ultra-short very narrow linewidth all- • Inherently photosensitive with moderate Er dopant concentration—Enables short length devices with a superimposed
optical DFB and DBR lasers
fiber grating structure
• High efficiency—Good conversion of pump to signal power
• Perfectly matched passive fiber available—Facilitates the construction of fiber-based components and pigtails with
low pump and signal coupling losses
Optical Specifications
Operating Wavelength (nominal)
Core NA
Mode Field Diameter
Cutoff
Core Absorption
PS-ESF-3/125
1550 nm
0.280
5.0 ± 1.0 µm @ 1550 nm
920 ± 50 nm
8.5 ± 1.0 dB/m near 1530
nm
Geometrical & Mechanical
Specifications
Cladding Diameter
Core Diameter
Coating Diameter
Coating Concentricity
Core/Clad Offset
Coating Material
Operating Temperature Range
Prooftest Level
125.0 ± 1.0 µm
3.0 µm
245.0 ± 15.0 µm
< 5.0 µm
≤ 0.50 µm
UV Cured, Dual Acrylate
-40 to 85 °C
≥ 100 kpsi (0.7 GN/m²)
The passive version of this fiber is also available.
7 Airport Park Road, East Granby, CT 06026 • 860.408.5000 • Toll-free 866.466.0214 • Fax 860.844.0210 E-mail info @ nufern.com • www.nufern.com Nufern
products are manufactured under an ISO 9001:2008 certified quality management system.
Standard specifications and design parameters are listed above. Specifications are subject to change without notice. Other configurations such as alternative form factors, optimized cut-off and UV cured color
coating may be available. Let us know how Nufern can assist with your requirements.
NU0109- 12/16/2011