Technical Bulletin

OS1/OS2 Singlemode Optical Fiber
(Americas, Asia Pacific)
T E C H N I C A L R E F E R E N C E
TR4
www.panduit.com  800-777-3300  [e-mail]
T e c h n i c a l I n f o r m a t i o n
PANDUIT OS1/OS2 fibers meet or exceed numerous standards for optical fiber, including ITU-TG.652
(Categories A, B, C and D), IEC 60793-2-50, ISO 11801 OS2, and TIA-492-CAAB and Telcordia GR-20.
These fibers ensure performance over the entire 1260nm to 1625nm spectrum and are compatible with
legacy fiber and the geometric properties contributing to minimizing splice loss and increasing splice yield.
G e o m e t r y
Dimension
Value
Core Diameter:
8.2μm typical
Cladding Diameter:
125μm ± 0.7μm
Cladding Non-Circularity:
≤ 1%
Core-Cladding Concentricity:
≤ 0.5μm
Coating Diameter:
245μm ± 5μm
Coating-Cladding Concentricity:
< 12μm
M o d e - F i e l d D i a m e t e r
Wavelength
Value
1310nm:
9.2 ± 0.4µm
1550nm:
10.4 ± 0.8µm
A t t e n u a t i o n
Wavelength
Value
1310nm:
≤ 0.34dB/km
1383nm @ Water Peak:
≤ 0.31dB/km
1550nm:
≤ 0.22dB/km
A t t e n u a t i o n v s . W a v e l e n g t h
Wavelength
Ref. λ
Maximum Attenuation Difference
1285 – 1330nm:
1310nm
0.03dB/km
1525 - 1575nm:
1550nm
0.02dB/km
1625nm:
1550nm
0.03dB/km
A t t e n u a t i o n w i t h B e n d i n g
Mandrel Diameter
Number of Turns
Wavelength
Induced Attenuation
32mm
1
1550nm
≤ 0.10dB
50mm
100
1310nm
≤ 0.05dB
50mm
100
1550nm
≤ 0.05dB
60mm
100
1550nm
≤ 0.05dB
O p t i c a l C h a r a c t e r i s t i c s
Property
Value
Cable Cutoff Wavelength λ
ccf
:
λ
ccf
≤ 1260nm
Point Discontinuity:
≤ 0.05dB @ 1310 or 1550nm
Numerical Aperture:
0.14 typical
Zero Dispersion Wavelength λ
0
:
1313 nm typical
Zero Dispersion Slope S
0
:
0.086 ps/(nm
2
*km) typical
Refractive Index Difference:
0.36% typical
Group Index of Refraction N
eff
- 1310nm:
1550nm:
1.466
1.467
Rayleigh Backscatter Coefficient (for 1ns pulsewidth) – 1310nm:
1550nm:
-77dB typical
-82dB typical