|  BendBright
fiber encompasses all the features of Enhanced Singlemode (ESMF)
fiber and provides high resistance to additional losses due to
macrobending, particularly in the 1600nm wavelength region. This
feature allows BendBright to fully support L-Band (1625nm) applications
without excessive care when storing the fiber, lowering installation
costs. At 1625nm BendBright is guaranteed to exhibit no more than
0.05 dB loss for 100 windings with a 25 mm radius, and for a single
half turn of 16 mm radius. This is 10 times greater performance
than current industry specifications.
BendBright's improved macrobending performance also extends into
lower wavelength regions (1550nm, 1310nm, etc.) and allows bend
radii down to 15mm. For cable mounting inside buildings BendBright
supports installation with low cable bending radii and compact
organizers.
Opening the transmission window up to the highest wavelength
region in the L-Band together with the potential to expand the
working area in designing low pitch cables have challenged traditional
fiber macro-bending performance (even the latest low water peak
fibers). BendBright meets and exceeds the challenge. |
|
| Features and Benefits |
| Features |
Benefits |
| Low Macrobending
Sensitivity at 1625 nm |
• |
Allows full use of
the L-Band without excessive care when storing the fibers |
| Tight Bend Radius |
• |
Allows 50% tighter bend radius at 1550
nm and 1310 nm |
| Lower
PMD of 0.08 ps/v / km link design value |
• |
Extends the PMD distance
performance, reducing regeneration costs |
| Proprietary APVD TM manufacturing
process |
• |
Superior geometry, uniformity and purity |
| Revolutionary
ColorLock ™ coating process |
• |
Increased reliability,
durability, and superior aging performance, resulting
in lower maintenance and replacement costs |
| • |
Makes color a component
of the coating, thus enhancing fiber identification
and colored fiber reliability |
| • |
Consistent, vibrant
color for ease-of-use and flexibility |
|
|
 |
| Optical Specifications (Uncabled
Fiber) |
| Attenuation |
Max
Value Range (dB/km) |
| Attenuation
at 1310 nm |
0.33
– 0.35 |
| Attenuation at 1383 nm
H2 aged* |
0.32 – 0.35 |
| Attenuation
at 1550 nm |
0.19
– 0.21 |
| Attenuation at 1625 nm |
0.20 – 0.23 |
| Attenuation
at 1460 nm |
 0.25 |
| Other values available
on request |
|
| Attenuation
Uniformity |
| No point
discontinuity greater than 0.05 dB at 1310 nm and 1550
nm. |
| Attenuation
vs. Wavelength |
| Wavelength
(nm) |
Reference |
Change |
| 1285–1330
|
1310
|
0.03 |
| 1525–1575 |
1550 |
0.02 |
| 1460–1625 |
1550 |
0.04 |
|
| Attenuation
with Bending |
| 100
turns, 25mm radius @ 1625 nm |
0.05 dB |
| 1/2 turn, 16mm radius @
1625 nm |
0.05 dB |
| Wavelength |
| Cutoff
wavelength (cabled) |
1260 nm |
| Zero dispersion wavelength |
1300 – 1322 nm |
| Dispersion
Slope |
| Zero
dispersion slope |
<
0.090 ps/nm2*km |
| Dispersion
vs. Wavelength |
| Wavelength
(nm) |
Dispersion
(ps/nm*km) |
| 1285–1330 |
<=
|3| |
| 1550 |
18.0 |
| 1625
|
22.0 |
| PMD |
PMD link design value**
|
0.08ps/v / |
| Max individual fiber |
0.1 ps/v / |
|
|
* Aged in1% hydrogen at
one atmosphere per IEC 60793-2-50 type B.1.3
**Complies with IEC 60794-3 Ed 3, section 5.5 method 1. PMD link
design value provides a statistical upper limit for PMD over concatenated
lengths. Individual PMD values may change
when cabled. |
|
| Dimensional Specifications |
| Mode
field diameter @1310 nm |
9.2 ±
0.4 µm |
| Mode field diameter @1550nm
|
10.3 ± 0.5 µm |
| Fiber
outside diameter |
125.0
± 0.7 µm |
| Core/cladding offset |
0.5 µm |
| Fiber
non-circularity |
0.7% |
| Colored coating outside
diameter |
242 ± 7 µm |
| Colored
coating/cladding concentricity error |
12 µm |
| Fiber curl (radius) |
> 4 meters |
|
|
|
| Mechanical Specifications |
| Proof
Test of AFC ColorLock Coated Fiber |
| The
entire length is subjected to a tensile proof stress
>100 kpsi (0.7 GN/m2); 1% strain equivalent |
| Tensile
Strength |
| Dynamic
tensile strength (0.5 meter gauge length): Aged* and
unaged |
median
550 kpsi (3.8 GN/m 2 ) |
| Dynamic
and Static Fatigue |
| Dynamic
fatigue |
Nd
20 unaged and aged* |
| Static fatigue |
Ns
23 aged at 85°C, 85% RH |
| Coating
Performance |
| Coating strip
force: |
2.0 lbf (8.9 N) max, 0.2
lbf (1.3 N) min.
23°C, 0°C, and 45°C |
| Aged: |
30 days at 85°C and
85% RH
14 days water immersion at 23°C
Wasp spray exposure (Telcordia) |
|
|
| *Aged for 30 days at 85°C. 85%
relative humidity |
|
| Environmental Specifications |
| Induced
attenuation@1550 nm |
(dB/km) |
| Temperature cycling performance
(–60°C to 85°C) |
0.05 |
| Temperature humidity cycling
(–10°C to 85°C, 4–98% RH) |
0.05 |
| Water immersion (23°C,
14 days) |
0.05 |
| Heat aging (85°C, 30
days) |
0.05 |
| Damp heat (85°C, 85%
RH, 30 days) |
0.05 |
|
|
|
| Typical Characterization Values |
| Nominal
zero dispersion slope |
0.085
ps/nm2 *km |
| Effective group index |
@ 1310 nm |
1.467 |
| |
@ 1550 nm |
1.468 |
| |
@ 1625 nm |
1.468 |
| Backscatter coefficient
|
@ 1310 nm |
–79.4 dB |
| (1NS pulse width) |
@ 1550 nm |
–81.7 dB |
| |
@ 1625 nm |
–82.5 dB |
Dynamic tensile strength
(*aged, 0.5 m gauge length) |
median
750 kpsi (5.26 GN/m2) |
|
|
| |
