Ultra-Low PDL Fused Tap Coupler
(1310, S, C, L Band)
LPTC Series
Product Description
The Oplink LPTC (1x2 and 2x2) coupler series feature exceptionally low polarization
dependent loss on both signal and tap ports as well as excellent uniformity and low
excess loss. They 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. Reliabilityisguar-
anteed through stringent tests to fully meet Telcordia GR-1221 requirements.
Oplink can provide customized designs to meet specialized feature applications. Also,
Oplink offers modular assemblies that integrate other components to form a full func-
tion module or subsystem.
Port 1 In
L
Port 2 Signal (High%)
Port 4 (terminated for
1x2 configuration)
Ø
Port 3 Tap (Low%)
Performance Specificationns
LPTC Series
1310nm
S band
C band
L band
Unit
Features
Wavelength independent
Low insertion loss and PDL
High power handling
Guranteed reliability
Wavelength Range
Fiber Type
Insertion Loss
Return Loss
Directivity
Temperature Dependent Loss
[2]
Optical Power Handling
Operating Temperature Range
Storage Temperature Range
Package Dimension
[4]
Qualification
[1]
[2]
1270~1350
1420~1500
1530~1565
1570~1605
nm
Corning SMF-28 or equivalent
[1]
See Insertion Loss Table
≥ 55
≥ 55
Signal Path: 0.02~0.10,
Tap Path: 0.10~0.20
≤4
[3]
dB
dB
dB
W
°C
°C
(ø)3.0 x (L)47
(ø)3.0 x (L)60
(L)96 x (W)12 x (H)6.4
mm
Applications
Signal monitoring in EDFA
CATV
Local Area Networks
Testing instruments
-40 to +75
-40 to +85
P1: 250μm SMF-28 bare fiber
P2: 900μm loose tube
P3: 3mm cable
Telcordia GR-1221
Values are referenced without connector loss.
Temperature Dependent Loss (TDL) is defined as Insertion Loss ( IL) variation within –5 to 75
°C
operating temperature.
For example, TDL are 0.2dB and 0.02dB respectively for the two ports of 1/99% tap coupler. Smaller coupling ratio tends
to have higher TDL. A 5% tap coupler has smaller TDL than 1% tap coupler on tap port and higher TDL on signal port.
[3]
Operating temperature range at -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.
S0093 - R04. (web) 20130717
Ultra-Low PDL Fused Tap Coupler
(1310, S, C, L Band)
LPTC 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
≤ 0.18
≤ 0.25
≤ 0.30
≤ 0.35
≤ 0.60
≤ 0.85
≤ 1.15
≤ 1.35
≤ 1.75
≤ 2.10
≤ 2.50
≤ 2.85
PDL
2
(dB)
Signal
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
Tap
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
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
PDL
2
(dB)
Signal
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
Tap
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
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
1. Insertion loss over operating wavelength range at ~23°C (excluding PDL and TDL).
2. Insertion loss change over the all input polarization states.
Insertion Loss (IL) II : 1310nm, S 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
3.15-3.80
≤ 0.18
≤ 0.25
≤ 0.30
≤ 0.35
≤ 0.60
≤ 0.90
≤ 1.15
≤ 1.50
≤ 1.75
≤ 2.05
≤ 2.50
≤ 2.85
PDL
2
(dB)
Signal
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
Tap
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
≤ 0.03
IL
1
(dB)
Signal
≤ 0.23
≤ 0.30
≤ 0.34
≤ 0.40
≤ 0.65
≤ 0.85
≤ 1.15
≤ 1.44
≤ 1.82
≤ 2.02
≤ 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
5.5-6.8
4.7-5.9
4.2-5.0
3.7-4.6
3.1-4.0
PDL
2
(dB)
Signal
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
Tap
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
≤ 0.05
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
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 all input polarization states.
Oplink Communications, Inc
Ultra-Low PDL Fused Tap Coupler
(1310, S, C, L Band)
LPTC Series
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.
LPTC
Grade
0
0
Wavelength
1310 nm = 3
C band = 5
S band = 4
L band = 6
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
5/95= 05
3/97= 03
2/98= 02
1/99= 01
Fiber Length
0.5 meter = H
1.0 meter = 1
1.5 meter = 5
2.0 meter = 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/UPC = 9
MU = A
LC/APC = B
P Grade = P
A Grade = A
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com • www.oplink.com
Package & Fiber Type
P1 + 250 µm bare fiber = 11
P2 + 900 µm loose tube = 22
P3 + 3 mm cable = 33
*The tolerance of fiber length is +/-0.1m (for connector option only, for without connector, just keep the length as
minimum). 1 meter is standard. The lead-time for special fiber length will be longer.
S0093 - R04. (web) 20130717
Product Lines:
Mux/Demux
Switching/Routing
Coupling/Splitting
Monitoring/Conditioning
Amplification
Interconnect
Transmission
HFC/RoF Subsystem
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