Dual Window Single Mode Wideband
Fiber Coupler
(1310 nm and 1510 nm band)
DWFC Series
Product Description
The Oplink fused dual 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, 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
DWFC Series
Specifications
Unit
Features
Wavelength Independent
Low Insertion Loss and PDL
High Power Handling
Guranteed Reliability
Applications
Wavelength Range
Fiber Type
Insertion Loss
[1]
Return Loss
TDL
[2]
[1]
1310 ± 40 and 1550 ± 40
Corning SMF-28
See Insertion Loss Table
55
55
Signal Path: < 0.10 dB, 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
nm
dB
dB
dB
dB
W
°C
°C
mm
(Min)
Directivity (Min)
(Max)
Maximum Power Handling
Operating Temperature Range
[3]
Storage Temperature Range
Package Dimensions
[4]
Qualifications
Signal monitoring in EDFA
Network Monitoring
CATV
Local Area Networks
Testing Instruments
Laboratory R&D
Telcordia GR-1221
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.
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Dual Window Single Mode Wideband Fiber Coupler
(1310 nm and 1550 nm band)
DWFC Series
Insertion Loss (IL) :
P Grade
Coupling Ratio
A Grade
IL
1
(dB)
Signal
Tap
18.0-22.5
16.0-19.0
13.5-17.0
11.8-15.0
9.60-11.30
7.80-9.40
6.50-7.85
5.50-6.80
4.70-6.00
4.30-5.20
3.50-4.70
3.00-4.20
≤0.25
≤0.30
≤0.35
≤0.45
≤0.65
≤0.98
≤1.25
≤1.60
≤2.00
≤2.10
≤2.70
≤3.00
PDL
2
(dB)
Signal
Tap
≤0.05 ≤0.20
≤0.05 ≤0.20
≤0.05 ≤0.20
≤0.10 ≤0.20
≤0.10 ≤0.15
≤0.10 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15
Uniformity
IL
1
(dB)
Signal
≤0.25
≤0.30
≤0.35
≤0.45
≤0.65
≤0.98
≤1.25
≤1.80
≤1.95
≤2.30
≤2.80
≤3.20
Tap
16.0-23.5
14.5-19.0
13.0-18.2
12.0-16.5
9.20-12.2
7.80-9.80
6.40-8.00
5.30-7.00
4.50-6.50
4.30-5.50
3.20-5.00
2.80-4.50
PDL
2
(dB)
Signal
Tap
≤0.05 ≤0.20
≤0.05 ≤0.20
≤0.05 ≤0.20
≤0.10 ≤0.20
≤0.10 ≤0.15
≤0.10 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.15 ≤0.15
≤0.20
Uniformity
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
2.70-3.60
≤0.70
2.40-3.90
≤1.2
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com • www.oplink.com
1. Insertion loss over operating wavelength range at ~23°C
(excluding PDL and TDL).
2. Insertion loss change over the all input polarization states.
Ordering Information
Oplink can provide a remarkable range of customized optical solutions. For detail, please contact Oplink’s OEM
design team or account manager for your requirements and ordering information (510) 933-7200.
DWFC
0
0
0
Wavelength
1310/1550 nm
Type
1x2 = 1
2x2 = 2
Tap Ratio
50/50 = 50
45/55 = 45
40/60 = 40
35/65 = 35
30/70 = 30
25/75 = 25
20/80 = 20
15/85 = 15
10/90 = 10
05/95 = 05
03/97 = 03
02/98 = 02
01/99 = 01
Grade
Premium Grade = P
A Grade = A
Fiber Length*
0.5 Meter = H
1.0 Meter = 1
1.5 Meters = 5
2.0 Meters = 2
Connector Type
None = 1
FC/PC = 2
FC/SPC = 3
FC/APC = 4
SC/PC = 5
SC/SPC = 6
SC/APC = 7
ST = 8
LC = 9
MU = A
Package & Fiber Type
P1 + 250 µm bare fiber = 11
P2 + 900 µm loose tube = 22
P3 + 3 mm cable = 33
Notes :
* The tolerance of fiber length is +/-0.1m. 1 meter is standard.
The lead time for special fiber length will be longer.
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Product Lines:
Mux/Demux
Switching/Routing
Coupling/Splitting
Monitoring/Conditioning
Amplification
Transmission
Interconnect
RGB Laser Modules
LED Zone
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