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Specification for SM Optical Fibre (G652D) Low Water Peak.

Specification for SM Optical Fibre (G652D) Low Water Peak

Description

This Specification covers an uncoloured Single Mode Fibre used in the wavelength range form 1260 mm to 1625 mm, which complies with the lates ITU - T recommendation G.652D.

Aksh Optical Fibres are made of synthesized silica with a coating of 245 µm mechanically strippable UV cured acrylate.

Products name: SM Optical Fibre (G.652D)

Product Code: AKSH LW P SM Fibre

SPECIFICATION

Attenuation Coefficient:

At 1310 nm ≤0.34 dB/km
At 1310 nm ≤0.21 dB/km
At 1285-1330 nm ≤0.37 dB/km
Between 1525-1625 nm ≤0.24 dB/km
Between 1360-1480 nm ≤0.34 dB/km

Attenuation discontinuties

≤0.05 dB
at 1310/1550  
After Hydrogen Aging Test ≤0.31 dB/km
Cutoff wavelength 1170-1310 nm
Mode field diameter 9.30±0.5 μm at 1310 nm
  10.4 ±0.5 μm at 1550 nm

Chromatic Dispersion

 
At 1270-1340 nm ≤5.3 ps/nm.km
At 1285-1330 nm ≤3.2 ps/nm.km
At 1550 nm ≤18 ps/nm.km
Zero dispersion wavelength 1302-1322 nm
Zero dispersion slope ≤0.092 ps/nm2.km
Polarization Mode Dispersion ≤0.20 ps/√ km

Geometries

Cladding Diameter 125 ±0.7μm
Core Clad Concentricity Error ≤0.6 μm
Cladding Non-Clarcularity ≤1.0%
Coating Diameter 238-248 μm
Coating - Cladding Concentricity Error ≤10 μm
Fibre Curl > 4 m radius of curvature

Mechancial Characteristics

Proof Test >0.7Gpa
Strip ability force to remove ≥1.3N and ≤5.0 N
Second coating fibre  
Dynamic Tensile Strength  
Unaged > 550 Kpsi (3.8 Gpa)
Aged (Aged at 850C,95%RH for 30 days) > 440 Kpsi (3.0 Gpa)
Dynamic Fatigue Parameter ≥ 20
Static Fatigue Parameter ≥ 20

Micro Bending Loss

The induced atention due to 1 turn of fibre wrapped around a mandrel of 32mm diameter shall be less than 0.5 dB at 1150nm.

The induced attenuation due to 100 turns of fibre wrapped around a mandrel of 60 mm diameter shall be less than 0.05 dB at 1550 nm.

Environmental Characteristics

Temparture Depencence of Attenuation ≤ 0.05 dB/km at 1310/1550 nm
Induced attenuation at -600C to +850C  
Temperature Humidity Cycling ≤ 0.05 dB/km at 1310/1550 nm
Induced attenuation at - 100C to 850C, 95%RH  
Water Immersion ≤ 0.05 dB/km at 1310/1550 nm
Induced attenuation due to water immersion at 23 ± 2 0C  
Heating Aging ≤ 0.05 dB/km at 1310/1550 nm
Induced attenuation due to heat aging at + 85 ±20C  

Material Properties

Fibre Glass  
Renfraactive index profile Core: Refer
  Cladding: Matched cladding
Glass Composition Core: Germania (Ge O2 ) doped Silica (SiO2
  Cladding: Silica (SiO2 )
Primary Coating 2 Layers of UV curable resion

Shipping Information

Reel Dimension AKSH provides the fibre with following tpye of reel.
  Max. fibre length:    25.2km
Flange Diameter:     234.95mm
  Traverse Width     85mm
  Bore Diameter     25.45mm
  Barrel Diameter:    152.4mm
Reel Length The reel length is between 2.1 km and 25.2km with the length distribution as follows
  Length distribution
  25.2km               ≥ 80%
  2.1 to 23.1km      ≤20%
  The actual length of each reel shall be more than or equal to contract length
Reel Identification The lebel with ID number, barcode of ID number, attenuation at 1310 nm and 1550nm, AKSH product code and fibre length shall be attached on each reel.

Test Report

Test report for each shipment shall be submitted to the customer in the form of data sheet. Test report shall consist of product name, AKSH product code, ID number and the following measured values.
1.Length
2.Attenuation at 1310 nm,1383 nm,1550 nm and 1625nm.
3.Cladding Diameter
4.Core concentricity error
5.Cladding non circularity
6.Coating Diameter
7.Chromatic Dispersion at 1270-1340 nm
8.Chromatic Dispersion at 1285-1330 nm
9.Chromatic Dispersion at 1550nm
10.Zero dispersion wavelength
11.Zero dispersion slope
12.Cutoff wavelength
13.Mode field diameter
14.Fibre Curl
15. PMD at 1310 and 1550 nm
Typical Index Profile of Single Mode Fibre
Typical Index Profile of Single Mode Fibre
 
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