Ultra-Low PDL Fused Tap Coupler
(1310, S, C, L band)
LPTC Series
Oplink Communications, Inc.
Features
Applications
Guaranteed Reliability
CATV
Local Area Networks
Testing Instruments
Signal Monitoring in EDFA
Wavelength Independent
Low Insertion Loss and PDL
High Power Handling
Ultra-Low PDL Fused Tap Coupler
(1310, S, C, L band)
The Oplink LPTC (1x2 and 2x2) coupler series feature exceptionally low polarizatio
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. Reliabilityis-
guaranteed 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
functionmodule or subsystem.
Parameter
Wavelength Range
Fiber Type
Insertion Loss
Return Loss
Directivity
Temperature Dependent Loss
Optical Power Handling
Operating Temperature Range
Qualifications
1. Values are referenced without connector loss.
2. Change in insertion loss from -5 to 75°C. Values are depended on coupling ratio, for 99/1 coupler Temperature Dependent Loss
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.
Storage Temperature Range
Package Dimension
Performance Specifications
(TDL) ~0.02/0.20dB. As tap ratio increase, TDL decreases for tap path, while increases for signal path. All TDL is specified from
-5 to 75°C
Port 4 (terminated for
1x2 configuration)
Port 1 In
1
4
2
3
max
max
min
min
P1: 250µm SMF-28 bare fiber
P2: 900µm loose tube
P3: 3mm cable
1270~1350
1310nm
Ø
L
Signal Path: 0.02~0.10, Tap Path: 0.10~ 0.20
1420~1500
See Insertion Loss Table I, II
S band
Corning SMF-28
-40 to 75
-40 to 85
Telcordia GR-1221
55
55
4
1530~1565
C band
(L) 96 x (W) 12 x (H) 6.4
(Ø) 3.0 x (L) 47
(Ø) 3.0 x (L) 60
Port 2 Main (High%)
Port 3 Tap (Low%)
1570~1605
L band
R3.20070802
mm
nm
dB
dB
dB
W
°C
°C