4 Channel Receiver Optical Sub Assembly (Quad ROSA)

4Wave has developed a fully integrate Quad Receiver Optical Sub Assembly. This product has been designed specifically for an LX4 10 GBE transceiver.

Miniature 4Wave Quad ROSA

4Wave’s innovative design and advanced fabrication techniques allow us to offer a fully integrated multi bounce cavity, lenses four-channel CWDM demux filter array. This multi-filter array enables 4Wave to manufacture small, reliable, and highly integrated optical subassemblies. Alignment difficulties are drastically reduced due to the deposition of all four filters simultaneously on the same optically flat surface.

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Features & Benefits

• Small form-factor (20mm ×15.5mm × 8mm) allows the ROSA to reside inside the XENPAK or X2 transceivers or directly on a circuit board
• Integrated SC receptacle
• Low insertion loss

Applications

1. 10 Gigabit Ethernet LX4

• IEEE 802.3ae spec compliant
• 4 wavelengths demuxed from one fiber
• 3.125 Gbit/sec modulation on each wavelength (2.5 Gb/s payload)
• Coarse wavelength division multiplexing (CWDM)
  1. 4 wavelength channels, 24.5 nm channel spacing
  2. ~ 1275 to 1350 nm wavelength range
• Single-mode fiber supported – 10 km range
• Multi-mode fiber supported – 300 m range (50 um core)
• Compliant with transceiver MSAs (Multi-Source Agreement)
  1. XENPAK – 121 mm x 36 mm x 17.4 mm package
  2. XPAK – 70 mm x 36 mm x 10 mm package
• Allows use of installed plant of MMF for 10 GBE