• Distributed Temperature System
• Low attenuation at DTS operating wavelength 1450nm, 1550nm and 1650 nm
• High bandwidth at C-band (especially at 1550nm)
• High temperature resistance
• Low splicing loss
• Excellent bending insensitivity
1.Low attenuation at DTS operating wavelength
The lower attenuation of the DTS-MMF at the wavelength of1450nm, 1550nm and 1650nm can increase the distance of the distributed temperature measurement system.
2.High bandwidth at 1550nm
According to IEC 60793-1-41-2010 (bandwidth), the actual measured bandwidth at 1550nm of DTS-MMF can exceed more than 1000MHz·km, which effectively improves the spatial resolution of the long-distance distributed temperature measurement system.
|
Fibre Type |
GI62.5/125-27/250DTS |
GI50/125-20/250DTS |
||
|---|---|---|---|---|
|
Part No. |
GI2015-B |
GI2012-B |
||
|
Optical Properties |
||||
|
Numerical Aperture (NA) |
0.275±0.02 |
0.195±0.02 |
||
|
Loss |
@1300（dB/km) |
≤0.6 |
≤0.5 |
|
|
@1450 nm（dB/km) |
≤0.5 |
≤0.45 |
||
|
@1550 nm（dB/km) |
≤0.4 |
≤0.28 |
||
|
@1650 nm（dB/km) |
≤0.5 |
≤0.45 |
||
|
Splicing Loss (dB) |
≤0.1 |
≤0.1 |
||
|
Bandwidth |
@1300 nm（MHz·km) |
≥200 |
≥200 |
|
|
@1550 nm（MHz·km) |
≥1000 |
≥1000 |
||
|
Geometrical Properties |
||||
|
Fibre Core Radium (μm) |
62.5±1.5 |
50±1.5 |
||
|
Cladding Diameter(μm) |
125±0.7 |
125±0.7 |
||
|
Fibre Diameter (μm) |
245±7 |
245±7 |
||
|
Concentricity of Core Cladding (μm) |
≤1.5 |
≤1.5 |
||
|
Non-circularity of Core (%) |
≤5.0 |
≤5.0 |
||
|
Non-circularity of Cladding (%) |
≤0.6 |
≤0.6 |
||
|
Macro Bending Attached Attenuation |
||||
| Macrobend Loss（dB) |
|
|
||
|
Two Circles Radius: 15mm |
1300 nm |
≤0.2 |
≤0.3 |
|
|
1550 nm |
≤0.2 |
≤0.3 |
||
|
Two Circles Radius: 7.5mm |
1300 nm |
≤0.3 |
≤0.5 |
|
|
1550 nm |
≤0.3 |
≤0.5 |
||
|
Mechanical Properties |
||||
|
Proof Test Level (kpsi) |
≥100 |
≥100 |
||
|
Environmental Properties |
||||
|
Operating Temperature Range（℃) |
-40~+85/-40~+150(Optional) |
-40~+85/-40~+150(Optional) |
||
Copyright @ 2024 Yangtze Optical Fibre and Cable Joint Stock Limited Company鄂ICP备05003375号-1
