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Network Photonics offers MEMS-based wavelength switch

Posted: 26 Apr 2002 ?? ?Print Version ?Bookmark and Share

Keywords:crosswave 1200? crosswave 1200 dual? crosswave 2200? optical wavelength switch? oadm?

Claimed by the company to be the world's first commercially-available MEMS-based wavelength switches, the CrossWave 1200 and 2200 all-optical wavelength switching subsystems from Network Photonics Inc. can be used by OEM DWDM system providers as ROADMs and wavelength cross-connects (WXCs).

The CrossWave 1200 is a 4-port wavelength switch for ROADM applications in long-haul, ultra long-haul and metro-core DWDM networks.

An optional configuration, the Crosswave 1200 Dual, combines two independent CrossWave 1200 in a single chassis for bi-directional or east-west network applications.

The CrossWave 2200 is 4-port subsystem in a 2x2 configuration that provides 192x192 wavelength cross-connection. It has a switching capacity of 1.92Tb and is designed for wavelength management applications including DWDM ring interconnection and "Hybrid XC" switches.

In a Hybrid XC, the WXC subsystem is combined with a SONET/SDH digital cross-connect (DCS) or O-E-O grooming OXC to create a low-cost system which optically routes wavelengths and electronically grooms sub-wavelength services from some of those wavelengths.

Both the 1200 and 2200 subsystems have integrated switching optics with an embedded controller housed in a 3RU chassis designed to be NEBS ad ETSI-compliant. They consume 8W of power, and are bit rate and protocol transparent.

The subsystems are dynamically reconfigurable and allow up to 96 wavelengths of a DWDM signal on the input port to be independently directed to either the drop port or the output (express) port.

Crosswave technology enables the dynamic switching of DWDM wavelengths by integrating DEMUX, MUX, and switching functions into a single, purely photonic operation, eliminating the need for external DWDM multiplexers and unnecessary O-E-O conversions.





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