SOPO’s Dual window coupler (DWC) 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 coupler has the same coupling ratio on both 1310nm and 1550nm communication windows, and with low excess loss and low PDL. DWC couplers are widely used for communication systems, CATV, and FTTH.
Dual Window Coupler (DWC)
Key Features:
Low excess loss
Low PDL
Dual operating window
High stability and reliability
Applications:
Optical communication systems
CATV
FTTH
Specifications:
|
Parameter |
Normal |
Ultra Broadband |
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|
Grade |
P |
A |
P |
A |
|
|
Operating wavelength (nm) |
1310 and 1550 |
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|
Operating bandwidth (nm) |
±40 |
±80 |
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Typical excess loss (dB) |
0.07 |
0.1 |
0.07 |
0.1 |
|
|
Insertion loss (dB) |
50/50 |
≤3.6 |
≤3.8 |
≤3.8 |
≤4.0 |
|
45/55 |
≤4.2/3.2 |
≤4.4/3.4 |
≤4.5/3.3 |
≤4.7/3.5 |
|
|
40/60 |
≤4.7/2.7 |
≤4.9/2.9 |
≤5.0/2.8 |
≤5.2/3.0 |
|
|
35/65 |
≤5.4/2.4 |
≤5.7/2.6 |
≤5.8/2.5 |
≤6.1/2.7 |
|
|
33/67 |
≤5.7/2.2 |
≤6.0/2.4 |
≤6.1/2.3 |
≤6.4/2.5 |
|
|
30/70 |
≤6.0/1.9 |
≤6.3/2.1 |
≤6.4/2.0 |
≤6.7/2.2 |
|
|
25/75 |
≤7.0/1.7 |
≤7.3/1.9 |
≤7.3/1.7 |
≤7.7/1.9 |
|
|
20/80 |
≤7.9/1.3 |
≤8.4/1.4 |
≤8.3/1.3 |
≤8.7/1.5 |
|
|
15/85 |
≤9.5/1.0 |
≤10.0/1.2 |
≤9.6/1.0 |
≤10.1/1.2 |
|
|
10/90 |
9.2~11.2/≤0.75 |
8.80~11.40 /≤0.8 |
9.15~11.05 /≤0.75 |
8.75~11.45/≤0.8 |
|
|
5/95 |
12.05~14.15/≤0.4 |
11.60~14.60 /≤0.5 |
12.00~14.25/≤0.45 |
11.50~14.70/≤0.5 |
|
|
3/97 |
14.1~16.5/≤0.35 |
13.60~17.05/≤0.45 |
14.00~16.60 /≤0.35 |
13.45~17.15/≤0.45 |
|
|
2/98 |
15.75~18.45/≤0.3 |
15.15~19.00/≤0.4 |
15.60~18.60/≤0.3 |
14.95~19.20/≤0.4 |
|
|
1/99 |
18.6~21.6 /≤0.25 |
17.95~22.25/≤0.35 |
18.35~21.85/≤0.25 |
17.60~22.55/≤0.35 |
|
|
PDL (dB) |
≤0.15 |
≤0.2 |
≤0.15 |
≤0.2 |
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|
Directivity (dB) |
≥55 |
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Operating temperature (℃) |
-40 ~ +85 |
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*The above specification is without connector
*Insertion Loss around 1380nm (water peak) is not counted in the specifications above.
