FBT Coupler

Fiber Optic Passive Devices

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04 FBT Coupler

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· Features
arrow_03  Low excess loss and high performance
arrow_03  PCB mountable
arrow_03  Excellent uniformity

arrow_03  Low polarization dependent loss
arrow_03  Coupling ratio of 50:50 or customer ordered

· Applications
arrow_03  Telecommunication Network
arrow_03  Cable television networks
arrow_03  Test equipment
arrow_03  Fiber optic sensor

· Specifications

Standard Fiber Coupler 1x2

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
Max. Insertion loss (dB) 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
Max. Uniformity (dB) 0.5 0.7 / / / / / /
Max. PDL (dB) 0.15 0.2 0.2 0.25 0.2 0.25 0.2 0.3
Return loss (dB) ≥ 50dB
Operating temperature (℃) - 20 ℃~ + 75 ℃

Standard Fiber monolithic coupler 1xN

Wavelength (nm) 1310, 1550 or on request
Bandwidth (nm) +/-20
Con 1/3 1X4
Grade P S P S
Max. Insertion loss (dB) 5.4 5.7 7.0 7.4
Max. Uniformity (dB) 0.8 1.2 1.2 1.5
Max. PDL (dB) 0.2 0.3 0.2 0.3
Return loss (dB) ≥ 50dB
Operating temperature (℃) - 20 ℃~ + 75 ℃

· Ordering Information

26p
①Fiber Type②Configuration③Wave Legnth④Couplng Ratio⑤Cord Dia(mm)⑥Cord Length
SM : 9/125
MM : 50/125
HMM : 62.5/125
0102 : 1x2
0104 : 1x4
0108 : 1x8
A : 1310nm
B : 1550nm
C : 1310nm & 1550nm
U : Uniform output
S : Specified from
customer
09 : 0.9
30 : 3.0
1 ~ 99m
⑦Package⑧Connector Type / End Shape⑨Grade ⑩Bandwidth
SM : 9/125
MM : 50/125
HMM : 62.5/125
S : SC   F : FC
T : ST   L : LC
M: MU  N: None
S : SPC
U : UPC
A : APC
P : Premium
S : Standard
S: Standard
W: Wide