1*2 Optical Fiber Coupler Fbt

With 21 years history, KOC is a well-established brand popularly accepted in the world-wide market, especially in European and American countries. We are a professional manufacturer of most passive parts such as patch-cord, connector, adapter, attenuator,splitter, WDM serious. For more detail, please check on our website kocchina.en.made-in-china.com. 
 
In case of need, please do not hesitate in contacting us.


Product Description
BRIEF INTRODUCTION
   The KOC Fused Biconic Taper (FBT) Coupler is widely used for the distribution of optical power. For singlemode or multi mode are various coupling ratio, high reliability, compact size, low excess loss. The channel can be choice, which can supply 1xN or 2xN type and the pigtail cable can be ∮0.9mm or ∮2.0mm, and the connector is customized. Also, multi mode type is available.
PACKAGE DIMENSION:
Type-1, for pigtail is 250um or 900um
Type-1, for pigtail is 2.0mm
SPECIFICATIONS

Parameter	Premium		A Grade		Unit
Port Configuration	1x2  OR  2x2				/
Operating Wavelength Range	1310 ± 40 & 1550 ± 40				nm
Maximum Insertion Loss	3.5		3.7		dB
Return Loss	≥55				dB
Excess Loss	≤0.15		≤0.20		dB
Insertion Loss Uniformity	0.4		0.7		dB
Polarization Dispersion Loss	≤0.10		≤0.15		dB
Directivity	≥55				dB
Fiber Type	Corning SMF-28e				/
Operating Temperature	-40~+85				ºC
Storage Temperature	-40~+85				ºC
Cable Dimension	Bare fiber	0.9 loose tube		2.0 or 3.0 loose tube	mm
Package Dimension	Type-1			Type-2	/
Single Mode Dual Window(1310/1550) Wideband Couplers
Coupling Ratio	Insertion Loss (dB) Premium			Insertion Loss (dB) A Grade	Unit
50/50	3.5			3.7	dB
45/55	3.9/2.9			4.2/3.1	dB
40/60	4.7/2.7			5.0/2.9	dB
30/70	6.0/1.9			6.4/2.2	dB
20/80	7.9/1.2			8.5/1.4	dB
10/90	11.3/0.6			12.7/0.8	dB
5/95	15.0/0.4			16.0/0.5	dB
1/99	23.5/0.3			24.0/0.4	dB
Single Mode Single Window Wideband Couplers
Coupling Ratio	Insertion Loss (dB) Premium			Insertion Loss (dB) A Grade	Unit
50/50	3.6			3.7	dB
45/55	3.8/2.8			4.0/3.0	dB
40/60	4.4/2.5			4.8/2.8	dB
30/70	5.6/1.8			6.1/2.0	dB
20/80	7.6/1.2			8.0/1.3	dB
10/90	10.8/0.6			12.0/0.8	dB
5/95	14.0/0.4			14.5/0.5	dB
1/99	21.0/0.2			21.5/0.3	dB

Note1: All values specified are without connectors.