CMS HP0 pages

Cladding Mode Suppressed
Photosensitive Single-Mode Fiber
Nufern CMS-HP fiber is a photosensitive single-mode fiber designed for the production of complex Bragg grating structures,
such as those with high channel count, wherein cladding mode suppression is a fundamental requirement. This fiber
sets a new standard for photosensitive telecom fibers, with its excellent cladding mode suppression, high intrinsic
photosensitivity, low birefringence, and low polarization mode dispersion (PMD). It allows easy, uniform grating writing;
tighter channel spacing; and low splice loss to standard transmission fibers.

Typical Applications

Features & Benefits

• Dispersion compensators

• Excellent cladding mode suppression — Allows for tighter channel spacing

• DWDM gain flattening filters

• Mode matched to conventional transmission fibers — Low splice loss
• Designed to achieve low PMD — Enables the development of low PDL devices

Optical Specifications
Operating Wavelength
Core NA
Mode Field Diameter
Cutoff
Cladding Mode Suppression

CMS-HP
1450 – 1600 nm
0.180
6.5 ± 1.0 µm @ 1550 nm
1400 ± 50 nm
< 0.05 dB for a 35 dB
Grating

Geometrical & Mechanical
Specifications
Cladding Diameter
Core Diameter
Coating Diameter
Coating Concentricity
Core/Clad Offset
Coating Material
Operating Temperature Range
Short Term Bend Radius
Long Term Bend Radius
Prooftest Level

125.0 ± 1.0 µm
6.5 µm
245.0 ± 15.0 µm
< 5.0 µm
≤ 0.50 µm
UV Cured, Dual Acrylate
-55 to 85 °C
≥ 6 mm
≥ 13 mm
≥ 200 kpsi (1.4 GN/m²)

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.
NU0114- 11/07/2013