Fused Fiber Couplers
Single Window Narrowband Coupler
DiCon’s Single Window Narrowband FBT Coupler is a compact
low loss singlemode component designed for splitting power
signals in the 1550 nm or 1310 nm windows.
Preliminary Datasheet
Features
•
•
•
•
Low
insertion loss
Low PDL
Low wavelength dependence loss
Tested to Telecordia GR-1221 (bare fiber version)
Applications
Single Window Narrowband FBT
Couplers are designed for power
splitting and tapping in telecommunication equipment, CATV networks,
and test equipment. These components are available individually or
integrated into DiCon’s modules for fiber protection switching,
MUX/DMUX, optical channel monitoring, and add/drop multiplexing
applications.
Specifications subject to change. Copyright ©2001 DiCon Fiberoptics, Inc. All rights reserved.
Specifications
1
Grade
Uniformity
2
Directivity
Back-reflection
Thermal stability
Fiber type
Operating temperature
Storage temperature
Premium
0.5 dB max.
50 dB min. (for
60 dB min. (for
Standard
0.7 dB max.
1 X 2)
2 X 2)
Ordering Information
SNC -
Tap Ratio
1
2
5
10
20
30
40
50
1%
2%
5%
10%
20%
30%
40%
50%
1290 - 1330 nm
1530 - 1570 nm
Specify value
Premium
Standard
-
-
-
-
-
-
-50 dB max. (for 1 X 2)
-60 dB max. (for 2 X 2)
0.002 dB/
0
C max.
9/125 Corning SMF-28
-40
0
C to + 70
0
C
-40
0
C to + 85
0
C
Passband
13
15
X
1. All specifications referenced without connectors.
2. For 50/50 coupler only.
Coupling Ratio Table
Tap
ratio
1%
2%
5%
10%
20%
30%
40%
50%
Insertion loss P1
Premium Standard
0.2
0.25
0.4
0.6
1.2
1.7
2.4
3.3
0.3
0.35
0.5
0.8
1.3
1.9
2.7
3.6
Insertion loss P2
PDL
Premium Standard Premium Standard
21
18.2
14
10.8
7.3
5.5
4.3
3.3
22.5
19.2
17.8
11.8
7.9
6.0
4.7
3.6
0.2
0.15
0.15
0.1
0.1
0.1
0.1
0.1
0.3
0.25
0.25
0.2
0.2
0.2
0.2
0.15
Grade
1
2
Port Configuration
1x2
1
2
2x2
Connector Type
FC
FC/APC
FC/UPC
SC
SC/APC
SC/UPC
ST
ST/UPC
LC
LC/UPC
MU/UPC
N
2
9L
1
X
FC/SPC
FC/APC
FC/UPC
SC/SPC
SC/APC
SC/UPC
ST/SPC
ST/UPC
LC/SPC
LC/UPC
MU/UPC
None
250 micron, 200 kpsi bare fiber
900 micron, loose tube
1 meter
Specify X meters
Housing Dimensions
Loose Tube Package
3.05
Fiber Jacket
Pigtail Length
62.0
Bare Fiber Package
2.54
47.0
51.0
Units: mm
DiCon Fiberoptics, Inc. 1689 Regatta Blvd. Richmond, CA 94804
Tel. (510)620-5000
Fax. (510)620-4100
www.diconfiber.com
0064A
Fused Fiber Couplers
Single Window Narrowband Coupler
Fused Fiber Couplers
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