Multimode Fiber Couplers

Features		Applications
Low Insertion loss Wide Operating Wavelength Compact Size Excellent Environmental & Mechanical Stability		Local Area Networks CATV Systems Subscriber Loop Fiberoptic Instruments Fiber Sensors

Performance Specification

Parameter	Specification
Type	Multimode Standard Fiber Couplers
Central Wavelength (nm)	850 or 1310 or 1550
Grade	P	A
Coupling Ratio (%)	50/50	50/50
Excess Loss (Typical )(dB)	0.5 (0.8)*	0.7 (1.0)*
Maximum Insertion loss (dB)	3.5 (4.0)*	3.7 (4.2)*
Uniformity (Max.) (dB)	0.6	0.8
Directivity (Min.) (dB)	35
Operating Temperature( ° C)	-20 ~ +70(-40 ~ +85 available upon request)
Fiber Type	Corning multimode 50/125, 62.5/125, 100/140 fiber
Fiber Pigtail Length (m)	1m or custom length
Port Configuration	1x2 or 2x2
Dimensions (mm)	Package M, A, B, C

Parameter	Specification
Type	Multimode 1X3, 1X4 True Fusion Couplers
Central Wavelength (nm)	850 or 1310 or 1550
Port Configuration	1x3	1x4
Grade	P	P
Maximum Insertion loss (dB)	6.0 (6.5)*	7.2 (7.6)*
Uniformity (Max.) (dB)	1.2	1.2
Directivity (Min.) (dB)	35
Operating Temperature( ° C)	-20 ~ +70(-40 ~ +85 available upon request)
Fiber Type	Corning multimode 50/125, 62.5/125, 100/140 fiber
Fiber Pigtail Length (m)	1m or custom length
Dimensions (mm)	Package A, B, C

Parameter	Specification
Type	Multimode Tree/Star Couplers
Central Wavelength (nm)	850 or 1310
Configuration Type	n x 4 (n=1,2,4,)	n x 8 (n =1,2,8)	n x 16 (n =1,2,16)
Maximum Insertion loss (dB)	7.0/7.6*	10.5/11.0*	14.0/15.0*
Directivity (Min.) (dB)	40
Operating Temperature( ° C)	-20 ~ +70(-40 ~ +85 available upon request)
Fiber Type	Corning multimode 50/125, 62.5/125, 100/140 fiber
Fiber Pigtail Length (m)	1m or custom length
Dimensions (mm)	Package S, D	Package, D	Package E

*For 50/125 um, 62.5/125 um fiber operating is at 850nm.
**Measured under the stable mode condition with LED light source (CPR < 12).
Note: All values referenced are without connector

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Ordering Information

Type*

Grade

Wavelength

Coupling Ratio or Attenuation (dB)

Port

Package

Pigtail Style

Fiber Type

In/Out Connector

P
A

85=850nm
13=1310nm
15=1550nm

50=50/50
30=30/70
10=10/90
05=5/95
01=1/99
AV=Tree Coupler

0102=1x2
0202=2x2
0103=1x3
0303=3x3
0104=1x4
• •
• •
0116=1x16
1616=16x16
3232=32x32

A=Package A
B=Package B
C=Package C
D=Package D
E=Package E
M=Package M
S=Package S

1=Bare Fiber
2=900µm Jacket
3=3mm Cable

2=50/125um
3=62.5/125um
4=100/140um 5=Special fiber

0=None
1=FC/APC
2=FC/PC
3=SC/APC
4=SC/PC
5=ST
6=LC
X=Special

* Type:
M -- Multimode fiber coupler

Package Dimensions & Pigtail Syle

Package Dimensions:
Package M: 3mm x 40mm stainless steel tube
Package N: 3mm x 35mm stainless steel tube
Package A: 3mm x 54mm stainless steel tube
Package B: 3mm x 60mm stainless steel tube
Package C: 8.5mm x 14mm x 98mm case
Package S: 9.2mm x 50.88mm x 88.9mm case
Package D: 11.6mm x 80mm x 120mm
Package E: 14.5mm x 102mm x 142mm
Pigtail Style:
Package M, A:	250um bare fiber
Package A, B:	250um bare fiber or 900um loose tube
Package C~E:	3mm cable or 900um loose tube
Package S:	250um bare fiber or 900um loose tube