2X2 FBT Coupler
The Singlemode Optic-fiber Couplers can couple the optical signals in the coupling area, and then re-distribute the light power. The key parameters include operating wavelength, bandwidth, and excess loss, coupling ratio, PDL and so on.
| Features: |
Applications: |
| Low Insertion loss |
Long-Haul Telecommunications |
| Uniform Power Splitting |
Digital,Hybrid and AM-Video systems CATV |
| Excellent Environmental & |
High Speed Local Area Networks |
| Mechanical Stability |
Fiber Sensors |
Optical Specifications:
|
Coupling Ratio
|
Insertion Loss（dB）
|
|
P Grade
|
A Grade
|
|
50/50
|
3.5/3.5
|
3.6/3.6
|
|
40/60
|
4.7/2.7
|
5.0/2.9
|
|
30/70
|
6.0/1.9
|
6.4/2.1
|
|
20/80
|
7.9/1.2
|
8.5/1.4
|
|
10/90
|
11.3/0.6
|
12.7/0.8
|
|
05/95
|
14.0/0.45
|
17.5/0.5
|
|
01/99
|
21.0/0.2
|
21.5/0.25
|
|
Excess Loss（dB）
|
0.10
|
0.15
|
|
PDL（dB）
|
0.10
|
0.15
|
|
Operation Wavelength（nm）
|
1310±40, 1550±40,1310/1550±40,1310/1550±40/1490±20
|
|
Directivity（dB）
|
≥55
|
|
Return Loss（dB）
|
≥55
|
|
Channel Number
|
2×2
|
|
Parameter
|
Unit
|
Specification
|
|
Operating Wavelength
|
nm
|
Single Window1 Dual,Three Window2
|
|
（2×N）
|
|
N=3
|
N=4
|
N=5
|
N=8
|
N=16
|
N=24
|
N=32
|
N=64
|
|
Fiber Type
|
|
Corning SMF-28e
|
|
IL(MAX)
|
dB
|
5.41/5.62
|
7.01/7.22
|
7.81/8.02
|
10.01/10.42
|
13.51/13.92
|
15.01/15.42
|
17.31/17.52
|
21.01/21.52
|
|
Uniformity
|
dB
|
0.51/0.62
|
0.51/0.62
|
0.61/0.82
|
0.81/1.02
|
1.11/1.32
|
1.21/1.52
|
1.31/1.52
|
2.11/2.52
|
|
Return Loss
|
dB
|
≥55
|
|
Directivity
|
dB
|
≥55
|
|
PDL
|
dB
|
＜0.20
|
＜0.20
|
＜0.30
|
＜0.30
|
＜0.40
|
＜0.50
|
＜0.50
|
＜0.50
|
（2×N）: Equal Coupling Ratio
Note:All the data above does not include connectors.