Single Mode Dual window Coupler (1260-1620nm)
Dual Window Single Mode Fused Coupler (DWFC)  
Features  
Low insertion loss  
Low PDL  
High stability and reliability  
Application:  
Fiber Communication/Access Network  
Fiber Sensor  
Fiber Laser  
Specifications:  
Parameter  
Grade P  
Grade A  
Operating wavelength (nm)  
Typical excess loss (dB)  
1310+/-40&1550+/-40 or Other  
0.07  
0.10  
50/50  
3.6  
≤3.8  
40/60  
30/70  
20/80  
15/85  
4.7/2.7  
6.0/1.9  
≤7.5/1.15  
9.5/1.0  
4.9/2.9  
6.3/2.1  
≤8.0/1.3  
10.0/1.2  
Insertion loss (dB)  
10/90  
5/95  
3/97  
9.2~11.2/0.75  
12.05~14.15/0.4  
13.90~16.70/0.35  
8.80~11.40 /0.8  
11.60~14.60 /0.5  
13.4~17.2/0.45  
2/98  
1/99  
15.75~18.45/0.3  
18.6~21.6 /0.25  
≤0.15  
15.15~19.00/0.4  
17.95~22.25/0.35  
≤0.20  
PDL (dB)  
Directivity (dB)  
≥55  
≥55  
Return Loss(dB)  
Operating temperature ()  
Package Information  
~
-40 +85  
Configuration  
Fiber length  
Fiber Type  
1x2 or 2x2  
1m, others on request  
SMF-28e or on request  
900μm/2mm/3mm  
loose tube  
Pigtail type  
250μm bare fiber  
900μm loose tube  
φ3.0×L40 or  
φ3.0×L54  
φ3.0×L54  
φ4.0×L65  
Dimensions(φ×L )(mm)  
L90×W20×H9.5 )  
*** Other package dimensions can be made on customer request.  
mar  
k
et@acfiber.com  
Dual Window Single Mode Fused Coupler (DWFC)  
Ordering Information  
Produc  
t
DWFC 35=1310/1  
550  
Gra  
de  
P=  
P
A=  
A
Pigtail  
Type  
0=250u  
Wavelength  
Port  
CR  
1=1/99  
2=2/98  
3=3/97  
Package  
Fiber  
0
Length  
Connector  
1=1x2  
2=2x2  
1=φ3.0×L54  
2=φ3.0xL40  
3=φ3.0XL60  
4=φ3.0×L35  
5=φ2.4×L30  
6=φ4.0×L65  
7=φ2.4×L25  
0=S  
MF-2  
8e  
7=  
RC8  
0
H=0.5m  
8=0.8m  
1=1.0m  
5=1.5m  
2=2.0m  
3=3.0m  
0=None  
m
bare  
1=FC/UPC  
2=FC/APC  
3=SC/APC  
4=SC/UPC  
5=ST/PC  
6=LC/PC  
7=LC/APC  
8=E2000  
APC  
SS=Other  
fiber  
5=5/95  
1=900u  
m loose  
tube  
4=RC  
80um  
Bare  
A=10/90  
B=20/80  
C=30/70  
D=40/60  
E=50/50  
F=15/85  
G=25/75  
H=66/37  
I=0.1/99.9  
S=Other  
SM1  
A=90x20x9.5 550  
S=Other  
fiber.  
S=Others  
mar  
k
et@acfiber.com  
            market@acfiber.com