Dual and Quad Wavelength Selective Switch(WSS)

 

The application of Reconfigurable Optical Add/Drop Multiplexers (ROADM) in DWDM optical networks has expanded in recent years to support increasingly more directions as well as increased flexibility in the add/drop structure. Flexgrid® technology is now essential in the efficient use of optical bandwidth for extremely high data rates and advanced modulation formats employed by next generation DWDM transmitters/receivers, including 400Gb/s and 1 Tbit/s signals. These higher data rates require that channel spacing is flexible and can be increased real-time to allow the network to adapt to new transmission formats. Deployment of colorless directionless (CD) ROADMs and colorless, directionless, contentionless (CDC) is facilitated by the introduction of route & select (R&S) ROADM architectures, which, unlike broadcast & select (B&S) ROADMs that require only one WSS per direction, are based on two WSS per direction.

By integrating two WSS, each featuring superior optical performance, in a single module the dual WSS modules by Finisar are optimized for this new generation of R&S ROADMs. Dual WSS modules can also be used as CD 2xNxM Add/Drop modules and the platform can be scaled up to four WSS integrated in a single module without sacrificing optical performance to create the new generation of Quad WSS products.

  • Dual (two WSS integrated in a module) and Quad (four WSS integrated in a module) WSS
  • Configurations: 2x1xN WSS, 4x1xN WSS and Colorless/Directionless 2xNxM WSS
  • Alternate common port
  • Flexgrid® Dynamic Channel Width Control (fully ITU flexible grid G.694.1 compliant)
    • 6.25 GHz Width Resolution (default, 3.125GHz optional)
    • No constraints on the spectrum allocated to a super-channel
    • Hitless channel widening, narrowing and migration with 6.25 GHz resolution
  • Flexgrid® Dynamic Attenuation Control
    • 6.25 GHz Resolution
    • 0 – 20dB Range
    • Hitless channel and intra-channel power equalization
  • LCoS Switching Technology
  • Frequency range: 4.8 THz (default) – wider frequency range up to 10THz (C+L-band) can be supported
  • Broadcast & Select ROAD Architectures
  • Route & Select ROADM Architectures
  • ROADM Node on a blade – multiple degrees on a single blade
  • Multi-fiber DWDM network – multiple fiber pairs per direction
  • Colorless Directionless Add/Drop
  • 1+ Tb/s Transport ready
  • Dynamic Gain Equalization
  • Multi-carrier Superchannels
  • Alien Wavelength Routing
  • Flexgrid and Fixed grid ITU 50GHz and 100G

Single Wavelength Selective Switch(WSS)

 

The application of Reconfigurable Optical Add/Drop Multiplexers (ROADM) in DWDM optical networks has expanded in recent years to support increasingly more directions as well as increased flexibility in the add/drop structure. Flexgrid® technology is now essential in the efficient use of optical bandwidth for extremely high data rates and advanced modulation formats employed by next generation DWDM transmitters/receivers, including 400Gb/s and 1 Tbit/s signals. These higher data rates require that channel spacing is flexible and can be increased real-time to allow the network to adapt to new transmission formats. Deployment of colorless directionless (CD) ROADMs and colorless, directionless, contentionless (CDC) is facilitated by the introduction of route & select (R&S) ROADM architectures, which, unlike broadcast & select (B&S) ROADMs that require only one WSS per direction, are based on two WSS per direction.

By integrating two WSS, each featuring superior optical performance, in a single module the dual WSS modules by Finisar are optimized for this new generation of R&S ROADMs. Dual WSS modules can also be used as CD 2xNxM Add/Drop modules and the platform can be scaled up to four WSS integrated in a single module without sacrificing optical performance to create the new generation of Quad WSS products.

  • Dual (two WSS integrated in a module) and Quad (four WSS integrated in a module) WSS
  • Configurations: 2x1xN WSS, 4x1xN WSS and Colorless/Directionless 2xNxM WSS
  • Alternate common port
  • Flexgrid® Dynamic Channel Width Control (fully ITU flexible grid G.694.1 compliant)
    • 6.25 GHz Width Resolution (default, 3.125GHz optional)
    • No constraints on the spectrum allocated to a super-channel
    • Hitless channel widening, narrowing and migration with 6.25 GHz resolution
  • Flexgrid® Dynamic Attenuation Control
    • 6.25 GHz Resolution
    • 0 – 20dB Range
    • Hitless channel and intra-channel power equalization
  • LCoS Switching Technology
  • Frequency range: 4.8 THz (default) – wider frequency range up to 10THz (C+L-band) can be supported
  • Broadcast & Select ROAD Architectures
  • Route & Select ROADM Architectures
  • ROADM Node on a blade – multiple degrees on a single blade
  • Multi-fiber DWDM network – multiple fiber pairs per direction
  • Colorless Directionless Add/Drop
  • 1+ Tb/s Transport ready
  • Dynamic Gain Equalization
  • Multi-carrier Superchannels
  • Alien Wavelength Routing
  • Flexgrid and Fixed grid ITU 50GHz and 100G