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FBT Singlemode Fiber Coupler Splitter - Steel Tube Type FBT Singlemode Fiber Coupler Splitter - Steel Tube Type

Product Name : Steel Tube Type SM Fiber FBT Coupler Operating Wavelength(nm) : 1310,1480,1550 or custom wavelength

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  • Product Description
  • Specification
  • Features
  • Application
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Fused Biconic Taper (FBT) coupler, also be called FBT splitter, based on the traditional technology, it is to bundle to- gether two or more optical fibers, and then pull the cone machine melt stretching, and real-time monitoring the change of the ratio, spectral ratio requirements after melt stretching, one side retain a single fiber (the rest of the cut) as input, the other end is a multi-channel output.


As one of the key components for GPON FTTx networks, optical splitters can be placed in the Central Office or in one of the distribution points (outdoor or indoor) because the FBT coupler are highly stable for multiport optical signal splitting with low insertion loss. FBT couplers are designed for power splitting and tapping in telecommunication equipment, CATV network, and test equipment


OMC's FBT Singlemode coupler 1X2 2X 2 offer very low insertion loss, low polarization dependence and excellent en- vironmental stability Accurate coupling ratio from 50/50 to 1/99 and fiber type 250um bare fiber, 3mm and 900um loose tube fiber are available with very tight uniformity. Singlemode standard coupler and wideband coupler compo- nents find extensive application to perform power splitting and monitoring functions in all kinds of optical communi- cation.

Specification:


Single Standard Couplers

Grade

P Grade

A Grade

Coupling Ratio(%)

50/50

50/50

Excess Loss (Typical)(dB)

0.07

0.1

Maximum insertion loss(dB)

3.4

3.5

Polarization Sensitivity (dB)

0.15

0.2

Operating Wavelength(nm)

1310,1480,1550 or custom wavelength


Single Wideband Couplers

Grade

P Grade

A Grade

Coupling Ratio(%)

50/50

50/50

Excess Loss (Typical)(dB)

0.07

0.1

Maximum lnsertion loss(dB)

3.4

3.6

Polarization Sensitivity (dB)

0.15

0.2

Operating Wavelength(nm)

1310±40,1550±40,or custom wavelength

Coupling Ratio(%)

1~50

Directivity (dB)

≥55

Operating Temperature(℃)

-20~+80

Storage Temperature(℃)

-40~+85

Fiber Type

SMF-28

Fiber Pigtail Length(m)

1

Port Configuration

1×2 or 2×2

Dimensions (mm)

Package D,E,F,G


Coupling Ratio/insertion Loss Conversion Chart


Coupling Ratio

Insertion Loss

Quality Level

P Grade

A Grade

40/60

4.4/2.5

4.6/2.8

30/70

5.6/1.8

6.0/2.0

20/80

7.4/1.1

7.7/1.3

10/90

10.8/0.6

11.6/0.8

5/95

14.2/0.4

14.6/0.5

2/98

18.5/0.2

19.0/0.3

1/99

21.0/0.2

21.5/0.3

*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 F: 

3mm x 60mm stainless steel tube

Package G: 

10mm x 20mm x 90mm ABS cassette

Package H: 

10mm x 80mm x 100mm ABS cassette

Package I: 

18mm x 80mm x 120mm ABS cassette

Package J: 

18mm x 115mm x 140mm ABS cassette

Pigtail Style:

Package D,E: 

250um bare fiber

Package F

250um bare fiber or 900um loose tube

Package G,H,I,J: 

2mm,3mm cable or 900um loose tube


The relation picture of Insertion Loss & Wavelength、Temperature


image.png

Features:


Low insertion loss

Low polarization dependent loss 

High Return Loss Optional

Split Ratio 20/80, 40/60. (50/50 as default.)

Compact for small application areas like in closure or splice trays 

Wide Operating Temperature and Wavelength

Excellent Environmental & Mechanical Stability

Application:


FTTX (FTTP, FTTH, FTTN, FTTC)

Passive Optical Networks (PON) 

Local Area Networks (LAN) 

CATV Systems Amplifying, 

Monitoring System

We offer you 100% custom-made service

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