1×2 or 2×2 Three Window Coupler (TWC)

Name: Single Mode Three Window Coupler
Brand: Shenzhen Puhuixin Tecnhnology Co., Ltd.

Single Mode Three Window Coupler is also known as Fiber optic tap coupler, which is built to split the optical power or wavelength through Fused Biconic Taper (FBT) technique. Three window coupler means a coupler has three operating wavelengths at 1310 nm, 1550 nm and 1490 nm.

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Specification of Three Windows Coupler (TWC)

Grade		P	A
Port Configuration		1x2 or 2x2
Operating Wavelength (nm)		1310,1490 and 1550
Operating Bandwidth (nm)		1310±40,1490±10 and 1550±40
Typical Excess Loss (dB)		0.07	0.10
Insertion Loss (dB)	50/50	≤3.6	≤3.8
	40/60	≤4.7/2.7	≤4.9/2.9
	30/70	≤6.0/1.9	≤6.3/2.1
	20/80	≤7.9/1.3	≤8.4/1.4
	10/90	9.20~11.00/≤0.75	8.80~11.40/≤0.8
	5/95	12.05~14.20/≤0.4	11.55~14.65/≤0.5
	3/97	14.10~16.50/≤0.35	13.60~17.05/≤0.45
	2/98	15.60~18.55/≤0.3	15.00~19.20/≤0.4
	1/99	18.45~21.70/≤0.25	17.80~22.40/≤0.35
PDL (dB)		≤0.15	≤0.20
Directivity (dB)		≥55
Operating Temperature (℃)		-40 ~ +85
Package Dimension		250μm Bare Fibre: Φ3.0×45mm 900μm Loose Tube: Φ3.0×54mm 900um/2mm/3mm Loose Tube: 90×20×10mm

Ordering Information of Three Windows Coupler (TWC)

TWC	X	XXX	XXXX	XX/XX	X	X	XXX	XX/XX
	Grade	Port Number	Operating Wavelength	Coupling Ratio	Pigtail Type	Encapsulation Steel Tube	Fibre Length	Connector
	P=Perfect	1×2	1310 &1490 & 1550	01/99	0=250um	3.0×45	1m	FC/UPC
	A=Grade A	2×2		02/98	1=900um	3.0×54	1.5m	FC/APC
	X=Customized			03/97	4=others		2m	SC/UPC