Ultra Low Loss MPO MTP LCAPC SCAPC Termination Specialist

THE ULTIMATE LOW-LOSS MULTI-FIBER CONNECTIVITY CHOICE FOR 400G SYSTEM AND BEYOND

MPO connectors are well-suited for high-density, high-traffic applications including data centers and central offices. XFS' proprietary MPO manufacturing process employs the most advanced polishing technology for producing the MPO connectors with the best optical performance in the industry. We can offer 4, 8, 12, 24 and 48-fiber MPO assemblies, with ribbon, flat and round cable structure options. We can also provide MPO assemblies with IP (waterproof) connectivity.

OPTICAL PERFORMANCE

Item	Parameter		Reference
	Standard 12c SM MPO	Standard 12c MM MPO
Insertion loss typ.	0.1dB	0.05dB	IEC 61300-3-4
Insertion loss max.	0.25dB	0.15dB	IEC 61300-3-4
Return loss	APC: ≥65dB; UPC: ≥50dB	≥35dB	IEC 61300-3-6

Other Suppliers

Use Standard MT Ferrules for Achieving IL max. as

FOR MM MPO

FOR SM MPO

XFS

Uses Standard MT Ferrules for Achieving IL max. as

FOR MM MPO

FOR SM MPO

WITH XFS’ HIGH-PRECISION, PROPRIETARY POLISHING TECHNOLOGY, WE CAN PRODUCE LOW-LOSS MPO WITHOUT USING LOW-LOSS MT FERRULE.

- Charles Sun, CEO

END-FACE GEOMETRY

12c MPO/MTP^® Connector

	XFS	IEC 61755-3-31:2015
Minus Coplanarity (nm)	≤200	≤400
Ferrule Surface X-Angle (°)	-0.075 to +0.075	-0.15 to +0.15
Ferrule Surface Y-Angle (°) (SM)	7.85 to 8.15	7.8 to 8.2
Ferrule Surface Y-Angle (°) (MM)	-0.075 to +0.075	-0.15 to +0.15
Fiber Height (nm)	1100 to 1500	1000 to 3500
Fiber Differential Height-All (nm)	≤150	Not defined
Fiber Differential Height-Adj. (nm)	≤100	≤300
Fiber Tip Spherical Radius (mm)	≥1	≥1
Ferrule Surface X-Radius (mm)	≥2000	≥2000
Ferrule Surface Y-Radius (mm)	≥50	≥5
Core Dip (nm; for MM)	0 to 100	Not defined
Geometry Limit	≤10	≤17.4

FIBER HEIGHT

Fiber Height is a critical factor for connection performance; it needs to be controlled within a certain range, and the distance between the shortest and the longest fiber as well as the variation in adjacent Fiber Heights have to be minimized to ensure good coplanarity of all fibers. XFS has set much tighter tolerances on Fiber Height than IEC to have the most consistent Fiber Heights for a perfect connection.

IEC 61755-3-31:2015

XFS

CORE DIP

Core Dip is major factor in determining insertion loss and return loss of multimode MPO connector. It is a recessed area of a fiber core located at the top of the fiber. Core Dip appears during polishing process because core is usually softer than cladding material and it is easier removed. Core Dip prevents proper physical contact and needs to be minimized. XFS’ MM MPO connector has less than one-third of Core Dip value than industry average.

Other suppliers

XFS

GEOMETRY LIMIT

Geometry Limit can be used to quantitatively assess the acceptability of an MPO’s end-face. This term is a calculated merit function, which relates X-slope angle, coplanarity, and fiber tip radii in comparison to the defined ferrule compression force. For a specific MPO’s end-face condition, lower calculated values for GL indicate a better geometry. XFS has set a far more strict GL than IEC to ensure its MPO connector has the best end-face geometry and optical performance.

IEC 61755-3-31:2015 (12c MPO)

XFS (12c MPO)

END-FACE QUALITY

For end-face quality, IEC guidelines allow a few defects that are small in size. XFS’ fiber optic connector is one of the very few in the industry to deliver connectors with zero defects on the ENTIRE FERRULE END FACE. Thus the connector’s light extraction efficiency is optimized.

Zone	Range(μm)	XFS (MPO/APC)		IEC 61300-3-35 ed2.0 (APC)
Zone	Range(μm)	Scratches	Defects	Scratches	Defects
A: Core	0 to 25	None	None	4 ≤ 3μm	None
B: Cladding	25 to 115	None	None	No limit	No limit < 2μm 5 from 2μm to 5μm None > 5μm
Rest of ferrule		None	None	Not defined	Not defined