Product Description

Features

Functional Diagram

Parameters

Specification

Unit

Operating Wavelength Range

1260~1360

1510~1610

mm

Through

Insertion Loss (@ λ

connector)

2%

5%

10%

≤ 0.5

≤ 0.7

≤ 1.0

dB

Polarization Dependent Loss

≤ 0.1

dB

Return loss (exclude connector)

≥ 45

dB

Tapped

Monitoring

Responsivity (relative to nominal power at

input port)

2%

5%

10%

10~23

26~59

52~110

14~25

35~65

70~120

mA/W

Responsivity Polarization Dependence

≤ 0.15

dB

P1 Package

≥ 25

dB

P2 Package

≥ 33

dB

PD

PD Dark Current (@ 70°C, -5V bias)

≤ 5

nA

Bandwidth (50 ohm, 5V, -3dB)

≥ 1

GHz

Reverse Voltage

≤ 20

V

Forward Current

≤ 5

mA

Conditions

Input Optical Power

2%

5%

10%

≤ 21

≤ 16

≤ 12

dBm

0 to +70

°C

-40 to +85

°C

Fiber Type

SMF-28

Applications

Performance Specification

ns

Input

Output

PD

Notes:1.Directivity is defined as -10 log(ℜ

S0074 - R03. 20100602

Unidirectional Single Channel

Integrated Tap Monitors

UTMS Series

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.



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



EDFAs and Raman Amplifiers



Add/Drop and Optical Protection

Monitoring



DWDM/CWDM Systems