Product Description

Features

Functional Diagram

Parameters

Specification

Unit

Operating Wavelength Range

1260~1360

1510~1610

mm

Through

Insertion Loss (@ λ

connector)

2%

5%

10%

≤ 0.4

≤ 0.6

≤ 0.9

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

≤ 0.1

dB

≤ 0.5

dB

PD

PD Dark Current (@ 70°C, -5V bias)

≤ 10

nA

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

≥ 0.5

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

S0003 - R03. 20100601

Bi-directional Single Channel

Integrated Tap Monitors

BTMS Series

Oplink’s Single Channel Bi-directional Integrated Tap Monitor (BTMS) 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 Bi-directional feature allows power monitoring from

both input and output ports. BTMS minimizes component assembly costs and module foot-

print while increasing module design efficiency by facilitating fiber management.

The BTMS 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 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.



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

Both Input and Output



EDFAs and Raman amplifiers



Add/Drop and optical protection

monitoring



DWDM/CWDM systems