3-Port ROADM and TOADM

Optoplex's Reconfigurable Optical Add/Drop Multiplexer (ROADM) module, also known as Tuneable 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 tuneable 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 optimised to cover either C- or L-band wavelengths. The standard 100- or 200-GHz channel spacing ROADM products allow for single-channel drop. Customised banded-channel drop ROADMs are available upon request.

Key Features

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li> 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 Tuneable Filter Available

Telcordia GR-468 Qualified

Primary Applications

• Dynamically reconfigure channels
• Dynamic wavelength selection in DWDM systems
• Signal demultiplexing for DWDMs
• Optical performance monitoring
• Tuneable optical noise filtering
• Noise suppression for optical amplifiers