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Single Mode N x M & N x N Type
Characteristics
- Low excess loss
- Low insertion loss
- High directivity
- Excellent uniformity
- Compact size
Applications
- CATV Systems
- Subscriber's Networks Equipments
- Fiber Optic Telecommunications
- High Speed Transmission Systems
- EDFA
Single Mode Narrowband Coupler(Bandwidth ± 10 nm)
| Parameters |
Configuration |
| N x 2 |
N x 3 |
N x 4 |
N x 8 |
N x 16 |
| (N=1,2) |
(N=1,3) |
(N=1,2,4) |
(N=1,2,8) |
(N=1,2,16) |
| Grade |
P
|
A
|
P
|
A
|
P
|
A
|
P
|
A
|
P
|
A
|
| Insertion Loss(dB) |
Max. |
<3.4
|
<3.7
|
<5.5
|
<5.9
|
<6.8
|
<7.2
|
<10.0
|
<11.0
|
<13.0
|
<14.0
|
| Unifirmity(dB) |
Max. |
<0.6
|
<1.0
|
<1.5
|
<1.8
|
<0.8
|
<1.2
|
<1.2
|
<3.0
|
<2.4
|
<3.8
|
| Excess Loss(dB) |
Typ. |
<0.07
|
<0.1
|
<0.2
|
<0.3
|
<0.3
|
<0.5
|
<0.5
|
<0.9
|
<0.8
|
<1.2
|
| PDL(dB) |
Max. |
<0.1
|
<0.15
|
<0.15
|
<0.2
|
<0.2
|
<0.2
|
-
|
-
|
-
|
-
|
| Diretivity(dB) |
Min |
>50
|
|
Coupling Ratio / Insertion Loss(1 x 2)
|
|
Split Ratio
|
Insertion Loss(dB)
|
|
Grade
|
P
|
A
|
|
50/50
|
3.4
|
3.7
|
|
40/60
|
4.4/2.5
|
4.8/2.8
|
|
30/70
|
6/1.8
|
6.1/2
|
|
20/80
|
7.4/1
|
8.0/1.3
|
|
10/90
|
10.8/0.6
|
12.0/0.8
|
|
1/99
|
21.5/0.2
|
22.0/0.3
|
Single Mode Narrowband Coupler(Bandwidth ± 10 nm)
| Parameters |
Configuration |
| N x 2 |
N x 4 |
N x 8 |
N x 16 |
| (N=1,2) |
(N=1,2,4) |
(N=1,2,8) |
(N=1,2,16) |
| Grade |
P
|
A
|
P
|
A
|
P
|
A
|
P
|
A
|
| Insertion Loss(dB) |
Max. |
<3.4
|
<3.7
|
<6.8
|
<7.2
|
<10.0
|
<11.0
|
<13.0
|
<14.0
|
| Unifirmity(dB) |
Max. |
<0.6
|
<1.0
|
<0.8
|
<1.2
|
<1.2
|
<3.0
|
<2.4
|
<3.8
|
| Excess Loss(dB) |
Typ. |
<0.07
|
<0.1
|
<0.3
|
<0.5
|
<0.5
|
<0.9
|
<0.8
|
<1.2
|
| PDL(dB) |
Max. |
<0.1
|
<0.15
|
<0.2
|
<0.2
|
-
|
-
|
-
|
-
|
| Diretivity(dB) |
Min |
>50
|
|
Coupling Ratio / Insertion Loss(1 x 2)
|
|
Split Ratio
|
Insertion Loss(dB)
|
|
Grade
|
P
|
A
|
|
50/50
|
3.4
|
3.7
|
|
40/60
|
4.4/2.5
|
4.8/2.8
|
|
30/70
|
6/1.8
|
6.1/2
|
|
20/80
|
7.4/1
|
8.0/1.3
|
|
10/90
|
10.8/0.6
|
12.0/0.8
|
|
1/99
|
21.5/0.2
|
22.0/0.3
|
|
|
|
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|
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