Bi-directional Integrated TAP
Monitor Arrays
BTMA Series
Product Description
Oplink’s Bi-directional Integrated Tap Monitor Array (BTMA) is assembled using individual Bi-
directional Integrated Tap Monitor (BTMS) to guarantee no optical or electrical cross-talk
among different channels. 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 input or output ports. BTMA minimizes
component assembly costs and module footprint while increasing module design efficiency by
facilitating fiber management.
Each BTMS in the BTMA integrates the functionality of an optical tap and a photodiode while
delivering low insertion loss and low dark current with high temperature stability over a wide
wavelength range. BTMA is compact and easy to mount on PCB board for module and net-
work system use. Applications include DWDM channel power monitoring, optical network
switching/protection monitoring, re-configurable optical add/drop multiplexers, and gain/at-
tenuation 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.
Functional Diagram
Input
Output
PD
Performance Specificationns
Parameters
Features
Specification
Unit
Flat and Broad Operating Wavelength
Range
Operating Wavelength Range
1260 ~ 1360 1510~1610
nm
2%
5%
≤ 0.4
≤ 0.6
≤ 0.9
≤ 0.1
≥ 45
Low Insertion Loss and PDL
Low Dark Current
Insertion Loss (@λop, Top, All SOP, Exclude
Connectors)
dB
Through
10%
Various Tap Ratio Available
Polarization Dependent Loss
dB
dB
High Temperature Stability with
Return Loss (exclude connector)
Hermetically Sealed Photodiode
2%
5%
10 ~ 23
26 ~ 59
52 ~ 110
14 ~ 26
36 ~ 65
70 ~ 120
Monitor Optical Signal from Input or
Responsivity (Relative to Nominal
Power at Input Port)
mA/W
Output
Tapped
Monitoring
10%
Responsivity Polarization Dependence
≤ 0.1
≤ 0.5
≤ 10
≥ 0.5
≤ 20
≤ 5
dB
dB
1
Uniformity
Applications
PD Dark Current (@ 70°C, -5V bias)
nA
GHz
V
Add/Drop and Optical Protection
Bandwidth (50 ohm, 5V, -3dB)
Monitoring
PD
Reverse Voltage
DWDM/CWDM Systems
Forward Current
mA
2%
5%
≤ 21
≤ 16
≤12
Input Optical Power
Conditions
dBm
10%
Operating Temperature Range (<85%RH, Non-condensing)
Storage Temperature Range (<85%RH, Non-condensing)
-0
+70
+85
°C
°C
Notes:
-40
1) Directivity is defined as -10 log(ℜOut→PD / ℜIn→PD
where ℜ stands for responsivity.
)
Fiber Type
SMF-28
S0135 - R02. (web) 20130520