In WDM networks, muxponder technology aggregates multiple services into a single wavelength and then multiplexes them with other wavelengths into the same fiber.

WDM technology increases fiber capacity by multiplexing multiple wavelengths with a dedicated service (GbE/10/40/100GbE LAN, SONET/SDH, Fibre Channel, HD/SD-SDI, OTU2/3, etc.) into a single fiber optic cable. Muxponder technology adds electrical multiplexing or aggregation in front of the wavelength, making it the preferred choice for further maximizing fiber capacity.

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Efficient and flexible aggregation layer of multi-protocol/multi-rate services into a single wavelength / uplink trunk

In PacketLight’s muxponders, all 10G/40G or sub-10G services are first aggregated into a single 100G, 200G or 10G uplink, respectively, and then transmitted between the sites over a single wavelength. Muxponders enable as many as 20 different services to share the same wavelength, maximizing fiber utilization and presenting an effective low cost, easy-to-operate solution for today’s enterprises and carriers.

There are two main muxponders in the market today: 10G and 100G/200G.

10G Muxponder

The 10G OTU2 muxponder aggregates up to 16 Sub-10G services into a single uplink trunk. The typical rates and protocols supported include fast Ethernet, GbE, 1/2/4/G FC/FICON, STM-1/OC-3, STM-4/OC-12, STM-16/OC-48, SD-SDI, HD-SDI, 3G –SDI and DVB-ASI (see Figure 1).

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Figure 1

100G/200G Muxponder

The 100G OTU4 muxponder aggregates 10x10G and 2x40G service mix into a single 100G OTU4 standard OTN trunk. The typical rates and protocols supported include 10G LAN 8G/10G/16G/32G Fibre Channel, STM-64/OC-192, OTU2/OTU2e, 40G Ethernet (40GBase-SR4, 40GBaseLR4), OTU3, OTU3e, and 100G Ethernet (100GBase-SR10, 100GBase-LR10, 100GBase-LR4, 100GBaseER4).

Using ITU G.709 standard-based OTU4 and OTU2 OTN layer uplinks to aggregate different protocols (SDH/SONET, Ethernet, Fibre Channel and OTN services) simultaneously, muxponders provide the perfect access platform for the needs of multiple clients and enables merger of legacy and new services transparently over the same optical transport layer (see Figure 2).

Figure 2

The muxponder is often integrated into solutions provided to carriers, dark fiber providers and ISPs due to its carrier-grade features such as, remote monitoring and management, link diagnostic tools and bi-directional performance monitoring of the client service interfaces and uplink.

Benefits of OTN muxponders

  • Significantly reduce the number of wavelengths needed in the optical network
  • Simplify optical transport network management and maintenance
  • Unify legacy and next generation protocols and services over a common optical layer
  • Reduce the optical solution cost significantly by:
    • Reducing the number of colored 1G/2.5G/4G/10G optics by a factor of 8-10
    • Reducing the number of WDM filters and patch cords / patch panels needed
    • Reducing cost of amplification as there are less wavelengths to amplify
  • Lower power consumption and reduction of the rack space needed for the optical solution
  • Provide higher spectral efficiency, leveraging existing infrastructure for serving additional clients
  • Offers Layer-1 encryption for secure data transport
  • Cost-effective alien wavelength over existing WDM or OTN infrastructure

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