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"ynet" Optical Packet Network
· System Outline High-speed Optical Switch Device Demonstration 1 Demonstration 2
System Outline
The Optical Packet Switch and Optical Media Manager are key elements of the ynet Optical Packet Network, which achieves ultra-high transmission speeds and is suitable for applications requiring the handling of a large volume of image data. The successful development of this ring-topology optical packet network system was announced in a company press release in early 2005.
Optical Packet Switch
Direct Switching of Optical Packet Signals 
The Optical Packet Switch
Optical Packet Switch
The Optical Packet Switch functions as an add drop multiplexer switching node for multiple terminals on a ring network. The switch uses an optical label recognition circuit to read the address information in the header label and route each optical packet to the correct port. It does this at up to 40Gbps speeds with a latency of 10ns. To prevent data corruption caused when signals are simultaneously output to the same port, an optical buffer is used to delay the introduction of signals into the optical fiber.
Optical Media Manager
Interface Between Optical Packet Network and Conventional Networks 
The Optical Media Manager
Optical Media Manager
The Optical Media Manager functions as an edge node for the optical packet network.

The current model has four GbE ports and a single 10GbE port in its Ethernet interface. No special software or hardware is required because the Optical Media Manager appears as a typical L2 switch to any equipment that it is connected to.

Optical labels and the payloads of optical packets are generated from the received Ethernet frames, and optical packets are output at 40Gbps.

Through the use of a 40Gbps burst mode Clock/Data Recovery (CDR) circuit, data in the payload portion of a received optical packet can be extracted and Ethernet frames reassembled.
Potential Applications
Ring Network 
Ring Network

- Data Center
- Broadcast Station
- Digital Cinema
- Grid Computing
- PC Cluster
- SAN (Storage Area Network)
- Other enterprise LAN system
Partner with Yokogawa
Development partners who can work with Yokogawa to implement the upper layers of our optical packet network are welcome.


We also welcome application partners who have an interest in discussing our specifications and evaluating our optical packet network system.  


Please contact us by clicking Contact Us.

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