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

1×2 or 2×2 Three Window Coupler (TWC)

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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1×2 or 2×2 Three Window Coupler (TWC)

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


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