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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.

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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

Type	Package Dimension	Fiber Type	Connector 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

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