Optical Fibre

Single-Mode Optical Fibre

Name: G.652.D Single-Mode Optical Fibre
Brand: CR Fiber Optics
SKU: G.652.D

G.652.D

ITU-T G.652.D · low water peak · full-spectrum 1260–1625 nm

G. 652.D single mode optical fiber is designed specially for optical transmission systems operating over the entire wavelength window from 1260nm to 1625nm. By suppressing the water peak that occurs near 1383nm in conventional single mode fibre due to hydroxyl (OH-) ions absorption, the fiber is able to open E-band (1360-1460nm) for operation, and consequently provides 100nm more usable wavelengths. It optimizes attenuation and dispersion across the entire wavelength window from 1260nm to 1625nm, also reduces bending loss at L-band (1565nm~1625nm), and provides bandwidth resources for trunk, metropolitan area and access network.

Key features

(1) Comply to or superior to the ITU-T G.652D recommendation and IEC 60793-2-50 B1.3 specification.
(2) Designed for operation over 1260nm to 1625nm wavelength spectrum.
(3) Outstanding optical performance supporting high-speed transmission requirement of DWDM and CWDM.
(4) Excellent PMD performance, supporting high-speed and long repeater spacing transmission system.
(5) Compatible with existing 1310nm equipment.

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Quality & compliance

G.652.D

Standards & certifications

ITU-T G.652.DIEC 60793-2-50

Quality highlights

Attenuation @ 1310 nm: ≤ 0.34 dB/km
Attenuation @ 1383 nm: ≤ 0.31 dB/km (after hydrogen ageing)
Attenuation @ 1550 nm: ≤ 0.20 dB/km
Chromatic dispersion @ 1550 nm: ≤ 18 ps/(nm·km)
Zero dispersion wavelength: 1300 – 1324 nm

Specifications

G.652.D

Optical
Attenuation @ 1310 nm	≤ 0.34 dB/km
Attenuation @ 1383 nm	≤ 0.31 dB/km (after hydrogen ageing)
Attenuation @ 1550 nm	≤ 0.20 dB/km
Chromatic dispersion @ 1550 nm	≤ 18 ps/(nm·km)
Zero dispersion wavelength	1300 – 1324 nm
Cable cut-off wavelength λcc	≤ 1260 nm
PMD link design value	≤ 0.06 ps/√km

Geometry
Mode field diameter @ 1310 nm	9.2 ± 0.4 µm
Cladding diameter	125.0 ± 0.7 µm
Coating diameter	242 ± 5 µm
Core / cladding concentricity error	≤ 0.5 µm
Cladding non-circularity	≤ 0.7 %

Mechanical & environmental
Proof test	≥ 100 kpsi (0.69 GPa)
Macrobend (100 turns, Ø50 mm, 1625 nm)	≤ 0.05 dB
Operating temperature	-60 °C ~ +85 °C
Standards	ITU-T G.652.D, IEC 60793-2-50 type B1.3

Characteristics		Unit	Value
Geometrical	Cladding Diameter	μm	125.0±1.0
	Cladding Non-circularity	%	≤1.0
	Core-Cladding Concentricity Error	μm	≤0.6
	Core Non-circularity	%	≤12
	Coating Diameter	μm	243±0.5
	Coating-Cladding Concentricity Error	μm	≤12
	Curl Radius	m	≥4
Attenuation	1310nm	dB/km	≤0.35
	1383nm	dB/km	≤0.33
	1550nm	dB/km	≤0.21
	1625nm	dB/km	≤0.24
Attenuation vs Wavelength Max Difference	1285nm ~ 1330nm vs 1310nm	dB/km	≤0.04
	1525nm ~1575nm vs 1310nm	dB/km	≤0.03
	1485nm ~1580nm vs 1550nm	dB/km	≤0.04
Dispersion Coefficient	1285nm~1340nm	ps/(nmkm)	≥-3.5 ≤3.5
	1271nm~1360nm	ps/(nmkm)	≥-5.3 ≤5.3
	1480nm~1580nm	ps/(nmkm)	≤20
	1550nm	ps/(nmkm)	13.3-18
	1625nm	ps/(nmkm)	17.2-23
Zero Dispersion Wavelength λ0		nm	1300-1324
Zero Dispersion Slope S0		ps/(nm²km)	0.073-0.092
Typical Value		ps/(nm²km)	≤0.086
PMD	Maximum Individual Fiber	ps/√km	≤0.06
	Link (M=20, Q=0.01%)	ps/√km	≤0.06
	Typical Value	ps/√km	≤0.04
Cable Cut-off Wavelength λcc		nm	1180-1330
MFD	1310nm	μm	9.1±0.4
MFD	1550nm	μm	10.4±0.5
Effective Group Index of Refraction	1310nm		1.4672
Effective Group Index of Refraction	1550nm		1.4683
Point Discontinuity	1310nm	dB	≤0.05
Point Discontinuity	1550nm	dB	≤0.05
Temperature Cycling	-60ºC ~+85ºC	dB/km	≤0.03
Temperature Humidity Cycling	85ºC, RH 85%, 30 Days	dB/km	≤0.03
Water Immersion	23ºC, 30 Days	dB/km	≤0.03
Dry Heat Aging	85ºC, 30 Days	dB/km	≤0.03
Proof Test		%	≥1
		N	≥9.1
		Gpa	≥0.73
Coating Strip Force	Peak Force	N	1.3-8.9
Coating Strip Force	Typical Value	N	1.9
Dynamic Fatigue Nd			≥20
Macro-bend Induced Attenuation	1 turn around a mandrel of Φ 32 mm ,1310nm	dB	≤0.05
	100 turns around a mandrel of Φ 60 mm 1550nm	dB	≤0.05
	100 turns around a mandrel of Φ 60 mm , 1625nm	dB	≤0.05
Length per reel		km	24.4/48.8/50.4