UTMS Datasheet, PDF (1/2 Pages) OPLINK Communications Inc. – Unidirectional Single Channel Integrated Tap Monitors

Unidirectional Single Channel
Integrated Tap Monitors
UTMS Series
Product Description
Oplink’s Single Channel Unidirectional Integrated Tap Monitor (UTMS) 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 Unidirectional feature allows power monitoring from input
port only. UTMS minimizes component assembly costs and module footprint while increasing
module design efficiency by facilitating fiber management.
The UTMS 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 subsys-
tem.
Functional Diagram
Input
Output
PD
Performance Specificationns
Parameters
Specification
Operating Wavelength Range
1260~1360 1510~1610
2%
Insertion Loss (@ λ_Op, T_Op, All SOP, exclude
connector)
5%
Through
10%
Polarization Dependent Loss
≤ 0.5
≤ 0.7
≤ 1.0
≤ 0.1
Return loss (exclude connector)
≥ 45
Tapped
Monitoring
2%
Responsivity (relative to nominal power at
input port)
5%
10%
Responsivity Polarization Dependence
Directivity ^[1]
P1 Package
P2 Package
10~23
26~59
52~110
14~25
35~65
70~120
≤ 0.15
≥ 25
≥ 33
PD Dark Current (@ 70°C, -5V bias)
≤5
Bandwidth (50 ohm, 5V, -3dB)
≥1
PD
Reverse Voltage
≤ 20
Forward Current
≤5
Conditions
2%
Input Optical Power
5%
10%
Operating Temperature Range (<85%RH, Non-condensing)
≤ 21
≤ 16
≤ 12
0 to +70
Storage Temperature Range (<85%RH, Non-condensing)
-40 to +85
Fiber Type
SMF-28
Notes:1.Directivity is defined as -10 log(ℜ_Out→PD / ℜ_In→PD) where ℜ stands for responsivity.
Unit
mm
dB
dB
dB
mA/W
dB
dB
dB
nA
GHz
V
mA
dBm
°C
°C
Features
 2-/3-pin Package Easily Mounted
on a PCB
 Flat and Broad Operating
Wavelength Range
 Low Insertion Loss and PDL
 Low Dark Current
 Various Tap Ratios Available
 High Temperature Stability with
Hermetically Sealed Photodiode
 Monitor Optical Signal from One
Direction Only
Applications
 EDFAs and Raman Amplifiers
 Add/Drop and Optical Protection
Monitoring
 DWDM/CWDM Systems
S0074 - R03. 20100602