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Multimode Fiber Coupler

Multimode Fiber Coupler

Flyin Optronics’ Multimode Fiber Optic Coupler(MM FBT Coupler ) are fabricated from multimode fibers with core diameters of 50um ,62.5um or 100um. Standard multimode couplers are commonly used in short distance communications with LED sources operating at 1310nm or 850nm. Multimode couplers are wavelength independent over a broad range of wavelengths (600nm to 1610nm) with uniform modal power distribution launch condition, multimode tree/star couplers NX4(n=1,2,4) NX8(n=1,2,8) NX16(n=1,2,16) port ratios are available.

Grade:

P

A

Coupling Ratio:

50/50

30/70

10/90

5/95

1/99

Tree Coupler

Package:

D type

E type

G type

Pigtail Style:

Bare Fiber

900μm Jacket

2mm Cable

3mm Cable

Fiber Type:

50/125um

62.5/125um

custom

Connctor:

None

FC/APC

FC/PC

SC/APC

SC/PC

ST

LC

Special

Port:

1×2

2×2

1×3

3×3

1×4

4×4

1×5

5×5

1×6

6×6

1×7

7×7

1×8

8×8

1×9

9×9

1×10

10×10

1×11

11×11

1×12

12×12

1×13

13×13

1×14

14×14

1×15

15×15

1×16

16×16

32×32

Wavelength:

850nm

1310nm

1550nm

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Description

Parameters

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Flyin Optronics’ Multimode Fiber Optic Coupler(MM FBT Coupler ) are fabricated from multimode fibers with core diameters of 50um ,62.5um or 100um. Standard multimode couplers are commonly used in short distance communications with LED sources operating at 1310nm or 850nm. Multimode couplers are wavelength independent over a broad range of wavelengths (600nm to 1610nm) with uniform modal power distribution launch condition, multimode tree/star couplers NX4(n=1,2,4) NX8(n=1,2,8) NX16(n=1,2,16) port ratios are available.

All Flyin Optronics' products are Telcordia qualification tested.

Features
Low Excess Loss
Uniform Power Splitting
Rugged Package
Excellent Environmental & Mechanical Stability
Applications
Long-haul Telecommunications
Digital, Hybrid and AM-Video Systems
CATV Systems
High Speed Local Area Networks
Fiber Sensors

The production workshop show

Performance Specifications

Parameter Multimode Standard Fiber Couplers
Coupling Ratio(%) 50/50
Grade P Grade A Grade
Excess Loss (Typical)(dB) 0.7 1.0
Max.lnsertion Loss(dB) 4.2 4.5
Uniformity (Max.)(dB) 0.6 0.8
Directivity(Min.)(dB) 35
Operating Wavelength(nm) 800-1600
Central Wavelength (nm) 850 or 1310 or 1550
Operating Temperature(℃) -20~+85
Fiber Type Corning multimode 50/125, 62.5/125
Fiber Pigtail Length(m) 1 m or custom length
Port Configuration 1×2 or 2×2
Dimensions (mm) Package D,E,G

Coupling Ratio/insertion Loss Conversion Chart

Coupling Ratio lnsertion Loss
Premium A Grade
40/60 5.2/3.3 5.6/3.7
30/70 6.5/2.6 7.0/3.0
20/80 8.4/2.0 8.8/2.5
10/90 11.8/1.5 12.3/2.0

*Measured under the stable mode condition with LED light source.

Package Dimensions & Pigtail Style

Package Dimensions:
Package D:3mm x 45mm stainless steel tube
Package E:3mm x 54mm stainless steel tube
Package G:10mm x 20mm x 90mm case
Pigtail Style:
Package D: 250um bare fiber
Package E 250um bare fiber or 900um loose tube
Package G: 2mm,3mm cable or 900um loose tube

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