SC / APC Fiber Optic Coupler , Catv System Plc Optical Splitter Low Insertion
Fused Biconical Taper (FBT) Coupler is a kind of coupler fused by taper machine through fusing two or several pieces of optical fiber bundle. Real-time monitoring of optical ratio changing to meet the requirement after fused, one end of fiber preserving is as input and the other end is for multiple outputs. It has the advantages of small volume, high reliability, excellent uniformity. Optical fiber splitter is especially suitable for passive optical networks (EPON, BPON, GPON) which is connected with the terminal equipment and realize the optical power distribution.
The mini size couplers are designed to meet the requirement of the optical modules and fiber systems which need the small coupler package size. FOC COMMUNICATION CO., LTD developed the mini size coupler with high stability and reliability. The smallest size of the coupler is φ3.0x30 mm.
Features Mini size Low excess loss Low PDL High stability and reliability Various Coupling Ratio Compact Size
Applications Mini size EDFA Mini size transmitter/receiver module Optical communication systems Testing instruments Long-Haul Telecommunications CATV Systems &Fiber Sensors Local Area Network Performance Specifications
Singlemode Dual/Three Window Wideband Couplers | ||
Grade | P | A |
Excess Loss(Typ.)(dB) | 0.1 | 0.15 |
Max.Insertion Loss(dB) | 3.6 | 3.8 |
Uniformity(dB) | 0.7 | 1.0 |
Polarization Sensitivity(dB) | 0.10 | 0.15 |
Operating Wavelength(nm) | 1310/1550±40, 1310/1585±40,1310/1490/1550±40 or custom wavelength | |
Coupling Ratio(%) | 50/50 | |
Directivity(dB) | ≥55 | |
Operating Temperature(℃) | -20~+70 | |
Storage Temperature(℃) | -40~+85 | |
Port Configuration | 1*2 or 2*2 |
Coupling Ratio/Insertion Loss Conversion Chart
Coupling Ratio | Insertion Loss | |
Grade | P | A |
40/60 | 4.7/2.7 | 5.0/2.9 |
30/70 | 6.0/1.9 | 6.4/2.1 |
20/80 | 7.9/1.2 | 8.5/1.4 |
10/90 | 11.3/0.6 | 12.7/0.8 |
05/95 | 14.0/0.45 | 17.5/0.5 |
01/99 | 19~21/0.1~0.2 | 21.5/0.25 |
Ordering Information
FBT Coupler |
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| Port | Fiber Type | Input | Output | Pigtail Length | Connector |
| 0102=1x2 | 1=G652D, 2=G657A | L=900µm Loose tube, S=2.0mm, R=3.0mm, 0=Adapter | L=900µm Loose tube, S=2.0mm, R=3.0mm, 0=Adapter | 05-20=0.5--2.0m, 0=Adapter, X=Others | FU=FC/UPC, FA=FC/APC, SU=SC/UPC, SA=SC/APC, ST=ST/UPC, LU=LC/UPC, LA=LC/APC, 00=None, X=Others |
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