Home   |  Products   |  Profile   |  Contact   |  FAQ   |  Inquiry |  Email  |  Members 
Mode Conditioning   


Product Categories
Patch Cord
Connector & Ferrule
Fiber Cable
Equipment
Fiber-to-the-home
Order Form
  


A Mode Conditioning Patchcord (MCP) is a duplex multimode cord that has a small length of singlemode fiber at the start of the transmission length. The basic principle behind the cord is that you launch your laser into the small section of single mode fiber. The other end of the singlemode fiber is coupled to the multimode section of the cable with the core offset from the center of the multimode fiber.

Gigabit Ethernet (GbE) requires a laser light source instead of an LED source to power the network, due to the lasers faster rise and fall times, the pulses of light injected into the fiber are more tightly packed together thus greater bandwidth. Without the use of a MCP, multiple signals are generated when a singlemode laser launch into the center of a multimode fiber. Multiple signals can be generated that overlap each other and make it difficult for the receiver to interpret. This condition is known as Differential Modal Delay (DMD). MCP provided the offset between the singlemode and multimode fiber that eliminates the DMD effect.

Features:

  • Compliant with IEEE802.3z
  • Eliminates DMD phenomenon
  • Low Insertion Loss (<0.3dB)
  • Rugged offset splicing closure.
  • Available in 62.5 or 50mm multimode fiber

Description

62.5µmMMF

50µmMMF
Unit
Maximum Insertion loss
0.3
dB
Optical center offset between SMF and MMF
17 < Offset < 23
10 < Offset < 16
µm
Maximum angular offset
1
degree

Ferrule Geometry
Minimum
Nominal
Maximum
Radius of Curvature (mm)
10
15
25
Apex Offset (µm)
0
30
50
Planar Fiber Height (nm)
-10
0
200
Fiber / Ferrule Roughness (nm)
0
0
50

Length tolerance*

+

-
L < 1m 10cm 0cm
1 < L < 5m* 10% 0%
5 < L < 20m* 7% 0%
L > 20m* 5% 0%

* Absolute tolerance equal to the percentage of the total length.


Ordering Information:

Home   |  Products   |  Profile   |  Contact   |  FAQ   |  Inquiry |  Email  |  Members