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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.

Features
  • 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
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

Visit the BBN International Ltd website for more information on 3-Port ROADM and TOADM

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