Ultra-Low PDL Fused Tap Coupler
(1310,S,C,Lband)
LPTC Series
Features
Ultra-Low PDL Fused Tap Coupler
Wavelength Independent
(1310, S, C, L band)
Low Insertion Loss and PDL
High Power Handling
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.
Guaranteed Reliability
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.
Applications
CATV
Local Area Networks
Testing Instruments
Signal Monitoring in EDFA
Port 2 Main (High%)
L
Port 1 In
Ø
Port 4 (terminated for
Port 3 Tap (Low%)
1x2 configuration)
Performance Specifications
Parameter
Wavelength Range
Fiber Type
1310nm
S band
C band
L band
nm
1270~1350
1420~1500
Corning SMF-28
See Insertion Loss Table I, II
1530~1565
1570~1605
Insertion Loss1
Return Loss
dB
dB
dB
W
°C
°C
min
min
55
55
Directivity
Temperature Dependent Loss max
Optical Power Handling
Operating Temperature Range
Storage Temperature Range
2
Signal Path: 0.02~0.10, Tap Path: 0.10~0.20
max
4
3
-40 to 75
-40 to 85
P1: 250µm SMF-28 bare fiber
P2: 900µm loose tube
P3: 3mm cable
(Ø) 3.0 x (L) 47
(Ø) 3.0 x (L) 60
(L) 96 x (W) 12 x (H) 6.4
4
mm
Package Dimension
Qualifications
Telcordia GR-1221
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
(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
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.
R3.20070802
Oplink Communications, Inc.