FBT Coupler
Details
China B2B Services
B2B Services

FBT Coupler

TS Communication manufacture and provide a wide breadth of FBT couplers, which includes SM standard coupler, dual-window coupler, three-window coupler, wideband coupler with low insertion loss and high performances. The FBT couplers are available with coupling ration ranging from 1: 99 to 50: 50. Customized specifications are basically available.

FBT Coupler is a type of splitter which is based on fused biconical taper technology. The technology is widely accepted and adopted in the PON solution. FBT or fused biconical taper is a traditional technology that two fibers are twisted and fused together under high temperature while the device is being elongated and tapered.

Features of FBT Coupler

Passed Telcordia GR-1221-CORE, and 85℃, 85％RH test up to 1500 hours

Low extra loss

Specifications of FBT Coupler

1×2 Single Mode Coupler(SMC)

Wavelength

nm

1310,1550,1310&1550

Bandwidth

nm

±20，±40

Coupling Ratio

50/50

40/60

20/80

10/90

Grade

P

S

P

S

P

S

P

S

Insertion Loss

dB

Max

3.4

3.6

4.4/2.6

4.6/2.8

7.5/1.2

8.0/1.3

11.0/0.65

12.0/0.8

Uniformity

dB

Max

0.5

0.7

/

/

/

/

/

/

PDL

dB

Max

0.15

0.2

0.2

0.25

0.2

0.25

0.2

0.3

Return Loss

dB

≥50

Operating Temperature

℃

-20～75

1×2 Tap Coupler(WTC)

Wavelength

nm

1550 or on Request

Bandwidth

nm

±20

Coupling Ratio

1/99

2/98

5/95

Grade

P

S

P

S

P

S

Insertion Loss

dB

Max

21.5/0.22

22.0/0.3

18.5/0.25

19.5/0.35

14.0/0.4

14.8/0.5

PDL

dB

Max

0.25/0.10

0.30/0.15

0.25/0.10

0.30/0.15

0.25/0.10

0.30/0.15

Return Loss

dB

≥50

Operating Temperature

℃

-20～75

Three-Windows Couple

Wavelength

nm

1310&1490&1550

Bandwidth

nm

1310±40,1490±10,1550±40

Coupling Ratio

50/50

40/60

20/80

10/90

Grade

P

S

P

S

P

S

P

S

Insertion Loss

dB

Max

3.7

4

4.7/2.7

5.0/3.0

7.8/1.4

8.1/1.7

11.2/0.9

11.6/1.2

Uniformity

dB

Max

0.5

0.7

/

/

/

/

/

/

PDL

dB

Max

0.2

0.25

0.2

0.25

0.2

0.25

0.2

0.3

Return Loss

dB

≥50

Operating Temperature

℃

-20～75

(TWC)1×N Monolithic Single Mode Couple(MSC)

Wavelength

nm

1310,1550 or on Request

Bandwidth

nm

±20

Coupling Ratio

1×3

1×4

Grade

P

S

P

S

Insertion Loss

dB

Max

5.4

5.7

7

7.4

Uniformity

Max

dB

Max

0.8

1.2

1.2

1.5

PDL

Max

dB

Max

0.2

0.3

0.2

0.3

Return Loss

dB

≥50

Operating Temperature

℃

-20～75

Location : 8 Jinxiu Middle Road, Pingshan, Shenzhen, Guangdong, China, 518118 Jinxiu Middle Road,
Contact : Lin Jack, 0755 32983688

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