Single Channel Integrated Tap
Monitors
ITMS Series
Product Description
Oplink’s Single Channel IntegratedTap Monitor (ITMS) is a hybrid component that integrates
a flat spectral response of a thin-film tap with a high sensitivity PIN photodiode for power
monitoring applications.The ITMS minimizes component assembly costs and module footprint
while increasing module design efficiency by facilitating fiber management.
The ITMS integrates the functionality of an optical coupler and a photodiode while delivering
low insertion loss and low dark current with high temperature stability over a wide wavelength
range. It is compact and easy to mount on a PCB board for module and network system use.
Applications include DWDM channel power monitoring,optical network switching/protection
monitoring, re-configurable optical add/drop multiplexers, and gain/attenuation monitoring in
amplifier systems.
Oplink can provide customized designs to meet specialized feature applications. Also, Oplink
offers modular assemblies that integrate other components to form a full function module or
subsystem.
Features
Performance Specificationns
2-/3-pin Package Easily Mounted
Parameters
Specification
Unit
on a PCB
Operating Wavelength Range
1260~1360 1510~1610
mm
Flat and Broad Operating
2%
5%
10%
≤ 0.4
≤ 0.6
≤ 0.9
Insertion Loss (@ λOp, TOp, All SOP, exclude
connector)
Wavelength Range
dB
Low Insertion Loss and PDL
Low Dark Current
Through
Polarization Dependent Loss
≤ 0.05
≥ 45
dB
dB
Return loss (exclude connector)
Various Tap Ratios Available
2%
5%
10%
10~23
26~59
52~110
14~25
35~65
70~120
High Temperature Stability with
Responsivity (relative to nominal power at
input port)
mA/W
Hermetically Sealed Photodiode
Tapped
Monitoring
Responsivity Temperature Dependence (@1310nm
or 1550nm)
≤ 0.3
dB
Responsivity Polarization Dependence
≤ 0.1
≤ 10
≤ 2.5
≤ 20
≤ 10
dB
nA
nA
V
Applications
0.5G Bandwidth
PD Dark Current (@ 70°C, -5V bias)
2.0G Bandwidth
DWDM channel monitoring
Optical network switch/protection
PD
Reverse Voltage
Forward Current
2%
monitoring
mA
Re-configurable optical add/drop
≤ 21
≤ 16
≤ 12
multiplexers
Input Optical Power
5%
10%
dBm
Gain/attenuation monitoring in
Conditions
Fiber Type
amplifier systems
Operating Temperature Range (<85%RH,Non-condensing)
Storage Temperature Range (<85%RH, Non-condensing)
-5 to +70
-40 to +85
SMF-28
°C
°C
EDFAs and Raman amplifiers
R06.20080813