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Product
Description - Reconfigurable
Optical Add/Drop Multiplexer
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.
For 2-port Optical Tunable Filter, please visit
Optical Tunable
Filter page.
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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
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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
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Standard
Specifications of ROADM1:
| Parameter |
Unit
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100
GHz
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| Wavelength
Tuning Range |
nm
|
1528
~ 1563
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| Wavelength
Tuning Resolution |
THz
|
Calibrated
to ITU grids
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| Clear
Bandwidth |
GHz
|
ITU±10
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| Drop
Channel Maximum Insertion Loss2,3 |
dB
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2.8
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| Drop
Channel Ripple2,3 |
dB
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0.3
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| Drop
Channel Adjacent Channel Isolation2,3 |
dB
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>25
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| Drop
Channel PDL2,3 |
dB
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<0.5
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| Express
Channel Insertion Loss2,3 |
dB
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<2.3
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| Express
Non-Adjacent Channel Ripple2,3 |
dB
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<0.1
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| Express
Adjacent Channel Ripple2,3 |
dB
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<0.5
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| Express
Channel Isolation (drop in express)2,3 |
dB
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>25
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| Express
Channel PDL2,3 |
dB
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<0.5
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| PMD2,3 |
ps
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<0.5
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| Wavelength
Setting Error4 |
GHz
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<
±4
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| Wavelength
Repeatability4 |
GHz
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±1
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| Wavelength
Temperature Dependence2 |
pm/°C
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<
±1 (typical)
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| Return
Loss2 |
dB
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>40
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| Maximum
Input Optical Power |
mW
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300
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| Tuning
Speed (channel to channel, depending on originating
and destination channels) |
sec
|
5
~ 10
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| Tuning
Power Consumption |
mW
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<
1800 (peak); < 300 (idle)
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| Tuning
Voltage |
V
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5
(DC)
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| Electronic
Interface |
-
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RS232
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| Operating
Temperature |
°C
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0
~ 65
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| Storage
Temperature |
°C
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-40
~ 85
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| Dimension
(L x W x H)5 |
mm
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88 x 62 x 18
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Notes:
1. Certain parameter specifications can be varied based
on customer needs.
2. Over the stated spectral and operating temperature
ranges and all polarization states.
3. Within clear bandwidth.
4. Alignment related at a given temperature.
5. Including collimator sleeve and control PCB.
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Typical
Performance of ROADM:
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Product
Request and Ordering Information:
Please
speak to Optoplex Sales persons.
If you request custom-designed ROADM product, please provide
the following parameters:
- Wavelength
range
- Channel
spacings
- Passband
width
- Fiber
length
- Optical
connector type
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