The Oplink fused single window wideband fiber 1x2 (2x2) couplers provide
accurate optical signal coupling and splitting over wide bandwidth with high
performance and high reliability. These couplers have excellent uniformity,
low excess loss and very low polarization sensitivity and are available with
various tap ratios, wavelength ranges, fiber types, and connector options. All
devices are shown to be able to handle high optical power up to 4W and are
tested according to industry standard procedures. Reliability is guaranteed
through stringent tests to fully meet Telcordia GR-1221 requirements.
Port 1 In
L
Port 2 Main (High%)
Port 4 (terminated for
1x2 con guration)
Ø
Port 3 Tap (Low%)
Performance Specificationns
SWFC Series
980 nm
1310
nm
S
Band
C
Band
L
Band
C+L
Band
Unit
Features
Wavelength Independent
Low Insertion Loss and PDL
High Power Handling
Guranteed Reliability
Wavelength Range
Fiber Type
Insertion Loss
[1]
Return Loss (Min)
Directivity (Min)
TDL
[2]
(Max)
Maximum Power Handling
Operating Temperature
Range
[3]
Storage Temperature
Range
Package Dimensions
**
970 ~ 990
Corning HI980
Corning HI1060
OFS BF05635-02
1270 ~
1350
1420 ~
1500
1530 ~
1565
1570 ~
1605
1530 ~
1610
nm
Corning SMF-28
See Insertion Loss Table I, II, III
55
55
dB
dB
dB
dB
W
°C
°C
mm
Applications
Signal monitoring in EDFA
Network Monitoring
CATV
Local Area Networks
Testing Instruments
Laboratory R&D
Signal Path: <0.1dB, Tap Path: <0.15 dB
4
- 40 to + 75
- 40 to + 85
P1: 250 µm bare fiber
P2: 900 µm loose tube
P3: 3mm cable
(Ø) 3.0 x (L) 47.0
(Ø) 3.0 x (L) 60.0
(L) 96.0 x (W) 12.0 x (H) 6.4
Note:
[1] Values are referenced without connector loss.
[2] Temperature Sensitivity Coefficient ~0.002dB/°C
at the range of –5 to 75°C.
[3] Operating temperature range changes to -5 to 75°C in P2, P3 package and all package with connectors
[4] The mechanical tolerance should be +/- 0.2 mm on all package dimensions unless otherwise custom specified.
R07.20081210
Single Window Single Mode Wideband Fiber
Coupler
(980, 1310, S, C, L, and C+L band)
SWFC Series
Insertion Loss Tables
Insertion Loss (IL) I : C or L band coupler
P Grade
Coupling Ratio
A Grade
IL
1
(dB)
Signal
Tap
19.0-21.0
16.4-18.4
14.6-16.2
12.4-13.8
9.60-10.8
7.80-8.80
6.60-7.60
5.75-6.50
5.00-5.50
4.40-4.90
3.95-4.30
3.35-3.80
≤0.20
≤0.25
≤0.30
≤0.35
≤0.60
≤0.85
≤1.15
≤1.35
≤1.75
≤2.10
≤2.50
≤2.85
WDL
2
(dB)
Signal
Tap
≤0.08 ≤0.50
≤0.10 ≤0.40
≤0.10 ≤0.30
≤0.12 ≤0.25
≤0.12 ≤0.22
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.15 ≤0.20
≤0.20
PDL
3
(dB)
Signal
Tap
≤0.04 ≤0.12
≤0.04 ≤0.12
≤0.04 ≤0.12
≤0.04 ≤0.10
≤0.05 ≤0.10
≤0.05 ≤0.10
≤0.05 ≤0.10
≤0.06 ≤0.10
≤0.06 ≤0.10
≤0.07 ≤0.10
≤0.07 ≤0.09
≤0.07 ≤0.09
≤0.08
IL
1
(dB)
Signal
≤0.20
≤0.30
≤0.35
≤0.40
≤0.65
≤0.90
≤1.15
≤1.44
≤1.82
≤2.15
≤2.60
≤2.90
Tap
17.7-21.5
16.0-19.4
14.0-16.8
12.0-14.4
9.20-11.2
7.5-9.0
6.4-8.0
5.6-6.7
4.9-5.8
4.3-5.0
3.7-4.6
3.1-4.0
WDL
2
(dB)
Signal Tap
≤0.10
≤0.10
≤0.10
≤0.12
≤0.13
≤0.15
≤0.16
≤0.16
≤0.16
≤0.16
≤0.17
≤0.17
≤0.55
≤0.45
≤0.40
≤0.30
≤0.26
≤0.25
≤0.23
≤0.22
≤0.20
≤0.20
≤0.20
≤0.20
PDL
3
(dB)
Signal Tap
≤0.05
≤0.05
≤0.05
≤0.05
≤0.06
≤0.06
≤0.07
≤0.07
≤0.08
≤0.08
≤0.08
≤0.09
≤0.15
≤0.15
≤0.15
≤0.15
≤0.14
≤0.14
≤0.13
≤0.13
≤0.12
≤0.12
≤0.10
≤0.10
99/1
98/2
97/3
95/5
90/10
85/15
80/20
75/25
70/30
65/35
60/40
55/45
50/50
2.80-3.30
2.70-3.30
≤0.22
≤0.10
1. Insertion loss over operating wavelength range at ~23°C (excluding PDL and TDL).
2. Insertion loss change over the specified wavelength range.
3. Insertion loss change over the all input polarization states
Insertion Loss (IL) II : 1310nm, S
2
or C+L band coupler
P Grade
Coupling Ratio
A Grade
IL
1
(dB)
Signal
Tap
18.2-21.0
16.0-18.6
14.4-16.4
12.2-14.0
9.40-11.0
7.70-8.85
6.30-7.80
5.45-6.70
4.60-5.75
4.10-5.05
3.85-4.40
3.15-3.85
≤0.20
≤0.25
≤0.30
≤0.40
≤0.65
≤0.95
≤1.20
≤1.60
≤1.80
≤2.10
≤2.55
≤2.90
WDL
2
(dB)
Signal Tap
≤0.09 ≤0.90
≤0.09 ≤0.80
≤0.10 ≤0.70
≤0.13 ≤0.60
≤0.15 ≤0.50
≤0.15 ≤0.45
≤0.17 ≤0.40
≤0.18 ≤0.40
≤0.22 ≤0.40
≤0.23 ≤0.38
≤0.25 ≤0.35
≤0.30 ≤0.35
≤0.35
PDL
3
(dB)
Signal Tap
≤0.04
≤0.04
≤0.04
≤0.04
≤0.05
≤0.05
≤0.05
≤0.06
≤0.06
≤0.07
≤0.07
≤0.07
≤0.15
≤0.12
≤0.12
≤0.10
≤0.10
≤0.10
≤0.10
≤0.10
≤0.10
≤0.10
≤0.09
≤0.09
IL
1
(dB)
Signal
≤0.23
≤0.30
≤0.34
≤0.40
≤0.65
≤0.85
≤1.15
≤1.44
≤1.82
≤2.15
≤2.60
≤2.81
Tap
17.4-21.5
15.2-19.8
13.7-17.1
11.8-14.7
9.00-11.3
7.4-9.1
6.0-8.1
5.4-6.8
4.6-5.9
4.2-5.0
3.7-4.6
3.1-4.0
WDL
2
(dB)
Signal Tap
≤0.10 ≤1.20
≤0.11 ≤1.00
≤0.12 ≤0.90
≤0.15 ≤0.80
≤0.16 ≤0.60
≤0.18 ≤0.67
≤0.20 ≤0.55
≤0.20 ≤0.53
≤0.25 ≤0.50
≤0.30 ≤0.50
≤0.35 ≤0.48
≤0.40 ≤0.48
≤0.40
PDL
3
(dB)
Signal Tap
≤0.05 ≤0.20
≤0.05 ≤0.15
≤0.05 ≤0.15
≤0.05 ≤0.15
≤0.06 ≤0.15
≤0.06 ≤0.15
≤0.07 ≤0.14
≤0.07 ≤0.14
≤0.08 ≤0.13
≤0.08 ≤0.13
≤0.09 ≤0.11
≤0.09 ≤0.11
≤0.10
99/1
98/2
97/3
95/5
90/10
85/15
80/20
75/25
70/30
65/35
60/40
55/45
50/50
2.70-3.40
≤0.08
2.60-3.50
1. Insertion loss over operating wavelength range at ~23°C (excluding PDL and TDL). For S-band product, add 0.1dB due to water absorption peak of fiber.
2. Insertion loss change over the specified wavelength range. For S-band product, add 0.1dB in WDL due to water absorption peak of fiber.
3. Insertion loss change over the all input polarization states.
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