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Steel Tube Single Mode 1550nm Fused Fiber Coupler

1X2 Steel Tube Type 1310 / 1490 / 1550nm Fiber Optic FBT Coupler

FBT Coupler Description

Fiber Optic FBT splitter is a type of optical power management device that is fabricated using Fused Biconical Tape Technology.

It features small size, high reliability ,cheap cost and good channel-to-channel uniformity,and is widely used in PON networks to realize optical signal power splitting.

SUNET provides whole series of 1xN and 2xN spliiter products that are tailored for specific applications .All products meet GR-1209-CORE and GR-1221-CORE.

The single mode standard coupler features low excess loss, high stability and reliability. It is built by asymmetric coupling technique. The operating bandwidth of this normal coupler is expanding to ±40nm, and the ultra broadband coupler is expanding to ±80nm. The DWC has the same coupling ratio on both 1310nm and 1550nm communication windows, and with low excess loss and low PDL. DWC are widely used for communication systems, fiber optic cable coupler CATV, and FTTH.

FBT Coupler Feature

1. Low Excess loss

2. Low PDL

3. Environmentally stable

4. Good Thermal Stability

FBT Coupler Application

1. Long-haul Telecommunications

2. CATV Systems & Fiber Optic Sensors

3. Local Area Network

FBT Coupler Specification

Parameters	Specification
Channel Number	1x2 or2x2
Operating Wavelength (nm)	1310,1550,1310/1550,1310/1550/1490
Operating Bandwidth(nm)	±40
Coupling Ratio	Coupling Ratio Insertion Loss (dB)
	P Grade				A Grade
50/50	≤3.3				≤3.5
40/60	≤4.5/2.6				≤4.7/2.8
30/70	≤5.7/1.9				≤5.9/2.1
20/80	≤7.6/1.3				≤7.75/1.38
10/90	≤10.85/0.68				≤11.2/0.75
5/95	≤14.4/0.45				≤15.5/0.48
2/98	≤18.5/0.6				≤19.8/0.38
1/99	≤21.8/0.28				≤22.8/0.35
PDL(dB)	≤0.15				≤0.2
Directivity(dB)	≥50
Return Loss	≥55
(1xN)	N=3	N=4	N=5	N=8	N=16	N=24	N=32	N=64
Fiber Type	Corning SMF-28e
IL (MAX) (dB)	5.41/5.62	7.01/7.22	7.81/8.02	10.01/10.42	13.51/13.92	15.01/15.42	17.31/17.52	21.01/21.52
Uniformity (dB)	0.51/0.62	0.51/0.62	0.61/0.82	0.81/1.02	1.11/1.32	1.21/1.52	1.31/1.52	2.11/2.52
Return Loss (dB)	≥55
Directivity (dB)	≥50
PDL (dB)	< 0.20	< 0.20	< 0.30	< 0.30	< 0.40	< 0.50	< 0.50	< 0.20

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Categories	Fiber Optic FBT Coupler
Brand Name:	SUNET / OEM
Model Number:	Steel Tube Type
Certification:	ISO9001 / ISO14001
Place of Origin:	Qingdao , China
MOQ:	1 pc
Price:	USD 1.3 - 3 per piece
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	100000 PCS / Month
Delivery Time:	5 - 8 Workdays
Packaging Details:	Blister box packing
Product name:	1X2 Fiber Optic FBT Coupler
Splitter Type:	Steel Tube Type
Jacket Material:	PVC / LSZH
Wavelength:	1310 / 1490 / 1550nm
Operating Temperature:	-40-+85
Fiber type:	G652D / G657A1 / G657A2
Warranty:	1 Years
Specification:	Single mode
Length:	1M, 2M, customers requirement