3-Port ROADM / TOADM
Description
Optoplex's Reconfigurable Optical Add/Drop Multiplexer (ROADM) module, also known as Tunable Optical Add/Drop Multiplexer (TOADM), is based on a proprietary micro-optics and micro-actuator design, athermal packaging technology, and state-of-the-art thin-film coating. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), this 3-port ROADM device directs a selected channel to the Drop-Port (ADD/DROP) and the remaining channels to the Express-Port (EXP), as depicted in the figure below. This tunable feature can also be used for adding a channel, when the device is used in reverse. Cascading two ROADM modules, simultaneous add and drop functions can be achieved. Each single ROADM device is optimized to cover either C- or L-band wavelengths. The standard 100- or 200-GHz channel spacing ROADM products allow for single-channel drop. Customized banded-channel drop ROADMs are available upon request.
Features and Benefits of ROADM
Athermal Design
Wide Tuning Range, Cover Entire C- or L-Band
Flat and Wide Passband for up to 40 Gb/s Signal
Low & Uniform Insertion Loss
High Channel Isolation
Latching and Low Power Consumption
2-Port Tunable Filter Available
Telcordia GR-468 Qualified
Applications of ROADM
Dynamically reconfigure channels
Dynamic wavelength selection in DWDM systems
Signal demultiplexing for DWDMs
Optical performance monitoring
Tunable optical noise filtering
Noise suppression for optical amplifiers
Standard Specifications of ROADM1
Parameter
Unit
Specification
Wavelength Tuning Range
nm
1528 ~ 1563
Wavelength Tuning Resolution
-
Calibrated to ITU grids
Clear Bandwidth
GHz
ITU±10
Drop Channel Maximum Insertion Loss2,3
dB
2.8
Drop Channel Ripple2,3
dB
0.3
Drop Channel Adjacent Channel Isolation
dB
> 25
Drop Channel PDL2,3
dB
< 0.5
Express Channel Insertion Loss2,3
dB
< 2.3
Express Non-Adjacent Channel Ripple2,3
dB
< 0.1
Express Adjacent Channel Ripple2,3
dB
< 0.5
Express Channel Isolation (Drop in Express) 2,3
dB
> 25
Express Channel PDL 2,3
dB
< 0.5
PMD2,3
ps
< 0.5
Wavelength Setting Error4
GHz
< ±4
Wavelength Repeatability4
GHz
± 1
Wavelength Temperature Dependence2
pm/°C
< ±1 (typical)
Return Loss2
dB
> 40
Maximum Input Optical Power
mW
300
Tuning Speed (Channel to channel, depending on
originating and destination channels)
s
5 ~ 10
Tuning Power Consumption (Peak value)
mW
<1800 (peak); <300 (idle)
Tuning Voltage
V
5 (DC)
Standard Package Dimensions (L×W×H)5
mm
88×62×18
Fiber Pigtail Type
-
SMF-28 with 900 μm tight buffer
Notes:
Certain parameter specifications can be varied based on customer needs.
Over the stated spectral and operating temperature ranges and all polarization states.
Within clear bandwidth.
Alignment related at a given temperature.
Including PCB.
Typical Performance of ROADM
商品属性 [调节范围] 1528 ~ 1563nm