FBT Coupler Splitter

FBT splitter is an optical splitter that uses the Fused Biconical Taper (FBT) technique for splitting optical power and/or splitting wavelengths.

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FBT splitter is an optical splitter that uses the Fused Biconical Taper (FBT)
technique for splitting optical power and/or splitting wavelengths. The fused
fiber coupler is created through a process of fusing two bare fibers pulling the
fused section to achieve the desired optical characteristics.

Types of Optical Splitter

Specification

Parameter

Single-mode

Multimode

Unit

Working wavelength

1260~1650

850

nm

Insertion loss

60: 40

60%≤2.70; 40%≤4.70

60%≤3.20; 40%≤5.20

dB

70: 30

70%≤1.90; 30%≤6.00

70%≤2.50; 30%≤6.50

80: 20

80%≤1.20; 20%≤7.90

80%≤1.40; 20%≤9.00

90: 10

90%≤0.80; 10%≤11.60

90%≤1.30; 10%≤12.00

70: 15: 15

70%≤1.90; 15%≤9.00

70%≤2.50; 15%≤10.50

80: 10: 10

80%≤1.20; 10%≤11.60

80%≤1.20; 10%≤12.00

70: 10: 10: 10

70%≤1.90; 10%≤11.60

70%≤2.50; 10%≤12.00

60: 20: 10: 10

60%≤2.70; 20%≤7.90; 10%≤11.60

60%≤3.20; 20%≤9.00; 10%≤12.00

Polarization-dependent loss

≤0.15

≤0.15

dB

Direction

≥55

≥55

dB

Return loss

≥55

≥55

dB

Working temperature

-40~+85

-40~+85

°C

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