FBT COUPLER
Three Window Wideband Coupler
(Based on 50/50)
Parameter
Operating Wavelength Range
Insertion Loss
Uniformity
Return Loss
PDL
TDL
Operating & Storage Temperature
Light Duty ( B )
Package Dimensions
Medium Duty ( L )
Heavy Duty (K, R)
Premium
A grade
1260-1360 nm, 1480-1500 nm, 1535-1570 nm
≤ 3.6 dB
≤ 0.7 dB
≤ 3.8 dB
≤ 1.0 dB
≥ 55 dB (1x2) ≥ 65 dB (2x2)
≤ 0.15 dB
≤ 0.2 dB
≤ 0.2 dB (- 10° C ~ + 75° C) ≤ 0.35 dB (- 40° C ~ + 85° C)
- 40° C ~ + 85° C
3.0mm (
Φ
) x 55.0mm (L)
3.0mm (
Φ
) x 60.0mm (L)
100.0 mm x 12.0 mm x 8.0 mm
Tap Coupler
Coupling Ratio
40/60
30/70
20/80
10/90
5/95
1/99
Premium
4.7 / 2.7 dB
6.0 / 1.9 dB
7.9 / 1.2 dB
11.3 / 0.6 dB
15.0 / 0.4 dB
23.5 / 0.3 dB
A Grade
5.0 / 2.5 dB
6.4 / 2.2 dB
8.5 / 1.4 dB
12.7 / 0.8 dB
16.0 / 0.5 dB
25.0 / 0.4 dB
Tree Coupler
Max IL
Uniformity
Premium A Grade Premium
A Grade
1x4
7.2 dB
7.6 dB
1.3 dB
1.8 dB
1x8
11.0 dB
11.3 dB
2.0 dB
2.4 dB
1 x 16
14.4 dB
15.2 dB
2.7 dB
3.2 dB
1 x 32
18.1 dB
19.0 dB
3.4 dB
4.2 dB
* Other port numbers upon request
Port #
Note1: All values specified are without connectors.
Note2: Higher performance specifications upon request.
Note3: Fiber type Corning SMF-28e.
T WC
-
Port Number
12: 1 x 2
14: 1 x 4
18: 1 x 8
16: 1 x 16
32: 1 x 32
-
-
Grade
P: Premium
A: A Grade
Coupling Ratio
xy%:xy%
-
Fiber Length
1: 1 meter
2: 2 meter
S: Special
-
-
Pigtail Style
(=Package style)
B: bare fiber
L: 900
µm
loose tube
K: 2 mm cable
R: 3 mm cable
Connector
0: None
1: FC/PC
2: FC/APC
3: SC/ PC
4: SC/APC
5: FC/SPC
6: SC/SPC
7: LC/UPC
8: LC/SPC
9: Special
A: FC/UPC
B: SC/UPC
C: ST
www.lighteltech.com
2210 Lind Ave SW, Suite 100
Renton, WA 98057 USA
(425) 277-8000 ph.
(425) 277-5280 Fax
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