Draka Communications Netherlands: Tel: +31 (0)40 29 58 700 Fax: +31 (0)40 29 58 710
fibersales@draka.com France: Tel: +33 (0)3 21 79 49 00 Fax: +33 (0)3 21 79 49 33
www.draka.com/communications USA: Toll free: 800-879-9862 Outside US: +1.828.459.9787 Fax: +1.828.459.8267
Draka’s TeraLight
TM
Non-Zero Dispersion Shifted Fiber (NZDSF) has set the standard for high bit-rate, multi-wavelength
transmission. Its unique optimization of effective area, chromatic dispersion and dispersion slope enables excellent distorsion
management cost effective operation at 10 and 40 Gbps, tight channel spacing in C- and L-bands, compatibility with the future S-
band.
TeraLight
TM
Ultra is further optimized for long-haul and ultra-long-haul applications. Its typical chromatic dispersion of 8 ps/nm.km
at 1550 nm is optimized to be half that of standard single-mode fiber resulting in lower costs for dispersion compensation, but high
enough to counter cross-channel non-linearities. Guaranteed PMD link design value of 0.04 ps/km keeps distorsions within
tolerable limits, permitting 3 to 5 times longer distances without regeneration at 40 Gbps than fibers with higher PMD values,
resulting in cost savings. Low attenuation in the 1450 nm region ensures maximum efficiency of distributed Raman amplification
systems. Channel spacing as low as 25 GHz at 10 Gbps in C- and L-bands allows future capacity expansion. Commercially
available dispersion compensation devices provide near 100% chromatic dispersion and dispersion slope compensation.
The fiber complies with or exceeds the ITU-T Recommendations G.655.E/G.656, the IEC International Standard 60793-2-50 type
B4/B5 and can be used in all cable constructions, including loose tube, tight buffered, ribbon and central tube designs. Draka’s
Advanced Plasma and Vapor Deposition (APVD
TM
) manufacturing process and proprietary ColorLock-XS coating process further
enhance fiber purity, reliability, and durability.
Features
Advantages
10 Gbps, 40 Gbps and higher data rates
Future capacity increase; future-proof
PMD link design value 0.04 ps/km
Three to five times longer distance without regeneration at 40
Gbps than fibers with higher PMD values
Low attenuation, optimized effective area
Improve the optical signal-to-noise ratio, extending the link
distance
- More flat dispersion slope provides near 100% end-to-end
compensation with commercially available dispersion
compensation devices
- Potential cost savings from avoidance of costly channel-by-
channel compensation at long distances or higher bit rates
- Contact Draka for availability
- More than 160 channels in C-band alone at 10 Gbps
- Maximizing C-band utilization defers costly L-band deployment,
providing significant cost savings
- 320 channels in C-, L- and S-bands at 10 Gbps
- Higher capacity and more efficient bandwidth use
Key Industry Leading Milestones
TeraLight
TM
Ultra Optical Fiber
Optimized for long-haul and ultra-long transmission
Single-Mode Fiber
1999
2002
2005
Introduced TeraLight
TM
World record: 6.4 Tbps
over 2100 km
Issue date: 08/10
Supersedes: 05/10
2003
World record: 6000 km
80 channels at 10 Gbps
Draka Communications
fibersales@draka.com
www.draka.com/communications
The Draka Communications policy of continuous improvement
may cause in changed specifications without prior notice
Product Type: G.655.E, G.656
Coating Type: ColorLock-XS and Natural
Mechanical Specifications
Proof Test
The entire length is subjected to a tensile proof stress 0.7 GPa (100 kpsi); 1%
strain equivalent
Tensile Strength
Dynamic tensile strength (0.5 meter gauge length):
Aged*** and unaged:
median 3.8 GPa (550 kpsi)
*** Aging at 85°C, 85% RH, 30 days
Dynamic and Static Fatigue
Dynamic fatigue, unaged and aged***
n
d
20
Static fatigue, aged***
n
s
23
Coating Performance
Coating strip force unaged and aged****:
- Average strip force:
1 N to 3 N
- Peak strip force:
1.2 N to 8.9 N
**** Aging: • 0°C and 45°C
• 30 days at 85°C and 85% RH
• 14 days water immersion at 23°C
• Wasp spray exposure (Telcordia)
Environmental Specifications
Attenuation
Environmental Test
Test Conditions
Induced Attenuation at
1310, 1550 nm (dB/km)
Temperature cycling
- 60°C to 85°C
0.05
Temperature-Humidity
cycling
- 10°C to 85°C, 4-98%
RH
0.05
Water Immersion
14 days; 23°C
0.05
Dry Heat
30 days; 85°C
0.05
Damp Heat
30 days; 85°C; 85% RH
0.05
Typical Values
Miscellaneous
Dispersion at 1440 nm
2 ps/(nm.km)
Dispersion at 1550 nm
8 ps/(nm.km)
Dispersion at 1625 nm
12 ps/(nm.km)
Dispersion slope at 1550 nm
0.052 ps/(nm
2
.km)
Effective area
63 µm
2
Effective group index @ 1550 nm
1.4683
Effective group index @ 1625 nm
1.4685
Rayleigh Backscatter Coefficient for 1 ns pulse width:
@ 1550 nm
- 80.4 dB
@ 1625 nm
- 81.3 dB
Optical Specifications
Attenuation
Attenuation at 1383 nm*
0.7 dB/km
Attenuation at 1450 nm
0.26 dB/km
Attenuation at 1550 nm
0.22 dB/km
Attenuation at 1625 nm
0.25 dB/km
* Including H2-aging according to IEC 60793-2-50, type B.1.3
Other values available on request
Attenuation vs. Wavelength
Maximum attenuation change over the window from reference
Wavelength range (nm)
Reference λ (nm)
(dB/km)
1525 - 1575
1550
0.02
1550 - 1625
1550
0.03
1440 - 1550
1550
0.06
Point discontinuities
No point discontinuity greater than 0.05 dB at 1310 nm and 1550 nm.
Attenuation with Bending
Number of
Turns
Mandrel Radius
(mm)
Wavelength
(nm)
Induced
Attenuation (dB)
1
16
1550
0.5
100
25
1550
�� 0.05
100
30
1625
0.05
Cutoff Wavelength
Cable Cutoff wavelength (λccf)
1300 nm
Mode Field Diameter
Wavelength (nm)
MFD (µm)
1550
9.2 0.5
Chromatic Dispersion
Wavelength (nm)
Chromatic Dispersion (ps/[nm.km])
1440
0.1
1530 – 1565
5.5 to 10
1565 – 1625
7.5 to 13.4
Zero Dispersion Wavelength (λ
0
):
1425 nm
Polarization Mode Dispersion (PMD)
PMD Link Design Value** (pskm)
0.04
Max. Individual Fiber (pskm)
0.1
** According to IEC 60794 –3, Ed 3 (Q=0.01%)
Geometrical Specifications
Glass Geometry
Cladding Diameter
125.0 0.7 µm
Core/Cladding Concentricity Error
0.5 µm
Cladding Non-Circularity
0.7 %
Fiber Curl (Radius)
4 m
Coating Geometry
Coating Diameter
242 7 µm
Coating/Cladding Concentricity Error
12 µm
Coating Non-Circularity
5 %
Length
Standard lengths up to 25.2 km
TeraLight
TM
Ultra Optical Fiber
Optimized for long-haul and ultra-long transmission
Issue date: 08/10
Supersedes: 05/10