OTN DWDM System Solution

 

The diagram illustrates FICER's OTN DWDM (Optical Transport Network – Dense Wavelength Division Multiplexing) system solution, specifically designed for long-haul fiber transmission. It is ideal for data center interconnection (DCI), cross-regional backbone networks, and high-speed data communications.

This end-to-end architecture connects Site-A and Site-B, using DWDM technology to combine multiple wavelengths over a single pair of long-distance optical fibers. This improves bandwidth efficiency while reducing deployment costs.

Key Components:

  • OEO Transponder (Optical-Electrical-Optical Converter)
    It regenerate signals and convert wavelengths to extend the transmission distance or access DWDM networks one on one. It allows standard client equipment to connect seamlessly with DWDM systems.
  • OTU Muxponder (Optical Transport Unit Multiplexing Transponder)
    Combining multiple low-capacity services into a single high-capacity wavelength/uplink, Muxponders integrate various services by multiplexing several channels to a higher-order signal, which results in more efficient fiber utilization compared to transponders.

  • MUX/DEMUX (Multiplexer/Demultiplexer)
    A multiplexer (MUX) receives signals from multiple different DWDM wavelength inputs and forwards it to a single output line. Achieve "many-to-one" data transmission, which is used to allow multiple signal sources to share one common fiber line.

    Conversely, a demultiplexer (DEMUX) is the exact opposite of a multiplexer. It receives a single input signal and divides it to several output lines by different DWDM wavelength. Achieve "one-to-many" data transmission, which can convert a combined data stream into multiple single data streams.
  • Amplifier Modules (BA / LA / PA)
    • BA (Booster Amplifier): Enhances optical power at the transmitter side.
    • LA (Line Amplifier): Provides mid-span amplification to extend transmission distance.
    • PA (Pre-Amplifier): Boosts signal sensitivity before it enters the receiver.
  • DCM (Dispersion Compensation Module)
    Maintains signal integrity over long distances by compensating for chromatic dispersion.

Transmission Path Overview:

  1. At Site-A, optical signals from client equipment are converted into specific DWDM wavelengths via Transponders or Muxponders.
  2. These wavelength signals are combined using a MUX and transmitted over long-haul fiber, with amplifiers and dispersion compensation modules (DCMs) deployed along the path.
  3. Upon reaching Site-B, the DEMUX receive the combined signal and divides it to several output lines by different DMDM wavelength, and the DWDM signals are converted back to gray signals for handoff to switches or routers.

Advantages:

  • High Density and Capacity: Multiple channels over a single fiber greatly reduce fiber consumption and enlarge bandwidth.
  • Stable Long-Haul Transmission: Amplification and dispersion compensation ensure high-quality signal connectivity over long-distance fiber line.
  • Flexible Network Architecture: Supports Multiple channels and various data rates to meet diverse needs.

 

Application Scenarios and Target Customers

The OTN DWDM system is widely adopted in scenarios that demand high-speed, stable, and high-capacity transmission. Key application areas include:

  • Telecom Backbone Networks: Enables telecom operators to deploy long-haul, high-density fiber backbone infrastructure to support multiple service like voice, data, and video.
  • Data Center Interconnection (DCI): Connects geographically distributed data centers to ensure fast and reliable data synchronization and redundancy.
  • Government and Public Sector: Builds secure and stable transmission networks for sensitive and mission-critical communications.
  • Financial Institutions: Supports low-latency and highly available connectivity between trading systems and disaster recovery data centers.
  • Cloud Service Providers (CSPs): Addresses the massive bandwidth demands of cloud computing and storage, enabling scalable and efficient network infrastructures.

This solution is particularly suitable for enterprises or organizations requiring large capacity, long-distance transmission, and flexible multi-service integration. It is an ideal foundation for building modern fiber optic backbone networks.

 

More information about F520 OTN DWDM System