BTMS Datasheet, PDF (1/2 Pages) OPLINK Communications Inc. – Bi-directional Single ChannelTap Monitors

Bi-directional Single Channel
Integrated Tap Monitors
BTMS Series
Product Description
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.
Functional Diagram
Input
PD
Output
Performance Specificationns
Parameters
Operating Wavelength Range
2%
Insertion Loss (@ λ_Op, T_Op, All SOP, exclude
connector)
5%
Through
10%
Polarization Dependent Loss
Return loss (exclude connector)
Tapped
2%
Responsivity (relative to nominal power at
input port)
5%
10%
Monitoring
Responsivity Polarization Dependence
Uniformity ^[1]
PD Dark Current (@ 70°C, -5V bias)
Bandwidth (50 ohm, 5V, -3dB)
PD
Reverse Voltage
Forward Current
Conditions
2%
Input Optical Power
5%
10%
Operating Temperature Range (<85%RH, Non-condensing)
Storage Temperature Range (<85%RH, Non-condensing)
Fiber Type
Specification
1260~1360 1510~1610
≤ 0.4
≤ 0.6
≤ 0.9
≤ 0.1
≥ 45
10~23
26~59
52~110
14~25
35~65
70~120
≤ 0.1
≤ 0.5
≤ 10
≥ 0.5
≤ 20
≤5
≤ 21
≤ 16
≤ 12
0 to +70
-40 to +85
SMF-28
Unit
mm
dB
dB
dB
mA/W
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
Both Input and Output
Applications
 EDFAs and Raman amplifiers
 Add/Drop and optical protection
monitoring
 DWDM/CWDM systems
Notes: ^[1] Excluding connectors.
S0003 - R03. 20100601