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1×3/1×4 FBT Coupler

1×3/1×4 FBT Coupler

We use fused biconical taper technique to build a series of couplers. According to the different operating band- widths, we have wide band couplers,dual window couplers, three-window couplers,and so on.


Features

· Low insertion loss and low PDL

· High reliability& High stability

· RoHS compliant


Applications

· EDFA

· CATV Passive network WAN

· FTTH


Specifications

Parameter
Value


1×3 Dual-Window Coupler(DWC)

3×3 Single Window Coupler(WBC)

1×4 Dual-Window Coupler(DWC)

Operating Wavelength

nm

1310/1550

1310/1550

1310/1550

Operating Bandwidth

nm

1310/1550±40

1310/1550±40

1310/1550±40

Insertion Loss

dB

≤5.8

≤5.8

≤5.8

Polarization Dependent Loss

dB

≤0.25

≤0.25

≤0.25

Uniformity

dB

≤1.0

≤1.0

≤1.0

Temperature Dependent Loss

dB

≤0.25

≤0.25

≤0.25

Return Loss

dB

≥55

≥55

≥55

Operating Temperature

°C

-40~+85

-40~+85

-40~+85

Storage Temperature

°C

-40~+85

-40~+85

-40~+85

Fiber Type


SMF-28e

SMF-28e

SMF-28e


Order Guide

TypePackage DimensionFiber TypeConnector Type

1:1×3 Dual-Window

1:3*60mm

1: 250m bare fiber

0: without connector

2:3×3 Single Window

2:3*54mm

2: 900m tight buffer fiber

1: FC/ PC 2: FC/UPC 3: FC/APC

3:1×4 Dual-Window

3:3*40mm

X: Customized

4: SC/PC S:SC/UPC 6: SC/APC




7: ST 8: LC 9: MU X: Customized