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 Specification
ns
Parameters
Specification
Unit
Features
1260~1360
2%
5%
10%
1510~1610
mm
dB
dB
dB
14~25
35~65
70~120
≤ 0.15
≥ 25
≥ 33
≤5
≥1
≤ 20
≤5
2%
5%
10%
≤ 21
≤ 16
≤ 12
0 to +70
-40 to +85
SMF-28
mA/W
dB
dB
dB
nA
GHz
V
mA
dBm
°C
°C
Operating Wavelength Range
Insertion Loss (@ λ
Op
, T
Op
, All SOP, exclude
connector)
Polarization Dependent Loss
Return loss (exclude connector)
Responsivity (relative to nominal power at
input port)
Tapped
Monitoring
Responsivity Polarization Dependence
Directivity
[1]
Through
≤ 0.5
≤ 0.7
≤ 1.0
≤ 0.1
≥ 45
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
2%
5%
10%
10~23
26~59
52~110
P1 Package
P2 Package
PD Dark Current (@ 70°C, -5V bias)
PD
Bandwidth (50 ohm, 5V, -3dB)
Reverse Voltage
Forward Current
Input Optical Power
Conditions
Applications
EDFAs and Raman Amplifiers
Add/Drop and Optical Protection
Monitoring
DWDM/CWDM Systems
Operating Temperature Range
(<85%RH, Non-condensing)
Storage Temperature Range
(<85%RH, Non-condensing)
Fiber Type
Notes:1.Directivity is defined as -10 log(ℜ
O
ut
→PD
/
ℜ
I
n
→PD
) where
ℜ
stands for responsivity.
R03.20080826
Unidirectional Single Channel Integrated Tap Monitors
UTMS Series
Mechanical Drawing / Package Dimensions (dimension in mm)
Standard Package (P1, Bare Fiber or Loose Tube)
Miniature Package (P2, Bare Fiber)
ø2.5mm
Standard Package Pin Assignment
Pin 1:
Pin 2:
Pin 3:
Anode
Cathode
Case Ground
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com • www.oplink.com
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.
UTMS
2
0
0
0
Tap Ratio
2/98 = 02
5/95 = 05
10/90 = 10
Bandwidth
2.0G= 20
Fiber Length
0.5meter= H
1.0meter= 1
1.5meter= 5
2.0meter= 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=9
MU=A
Wavelength
1310/1550nm= D
1310nm= 3
C+L band= E
Package & Fiber Type
P1+250µm bare fiber =11
P1+900µm loose tube =12
P2+250µm bare fiber = 21
RoHS:
1) UTMS in P1 package is RoHS 5 compliant (RoHS permitted Lead in solder exemption is applied).
2) UTMS in P2 package is RoHS 6 compliant. Add “G” to the end of the above PN for RoHS 6.
R03.20080826
Product Lines:
Mux/Demux
Switching/Routing
Coupling/Splitting
Monitoring/Conditioning
Amplification
Transmission
Interconnect
RGB Laser Modules
Energy Infrastructure?
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