OSFP Transceivers

CloudLight 2 x 200G OSFP 2 x FR4

2 x 200G OSFP 2 x FR4

The Lumentum CloudLight™ CWDM OSFP 400G module is a highly integrated 2 x 200G transceiver focused on reach, bandwidth, density, and cost for data center deployments. The module has eight independent electrical input/output channels operating at 53.125 Gbps per channel. Optically the module consists of two transmit/receive units, with each operating on a set of four wavelengths on the ITU G.694.2 CWDM grid near 1300 nm. The transmit path of the module incorporates a bidirectional PAM4 retimer ASIC integrated with an 8-channel modulator driver, eight externally modulated lasers (two on each CWDM channel) and two optical multiplexers. On the receive path, two optical demultiplexers are coupled to eight photodiodes and two 4-channel TIA arrays, along with the PAM4 retimer. The electrical interface of the module is compliant with the 400GAUI-8 interface as defined by IEEE 802.3bs.

Features

  • 2 km reach via single mode fiber with KP4 FEC support at the host (BER threshold = 2e-4)
  • Optical link budget of 7.0 dB to support fiber patch panel and fiber cable management
  • Triple rate operation: 53.125 Gbps (PAM4), 25.78125 Gbps (NRZ), and 10.3125 Gbps (NRZ) per channel
  • Soft FEC support (SFEC) for 1.5 dB gain with 5% overhead included in PAM4 ASIC
  • Uncooled CWDM externally modulated lasers
  • Compliant with 400GAUI-8 interface defined in IEEE 802.3bs
  • Dual SMF mini-LC duplex optical connectors (5.25 mm pitch)
  • Receiver monitoring: receiver signal strength indicator (RSSI) is required for link diagnostics
  • Transmitter output power monitoring (TOPM) for laser calibration and link diagnostics
  • DC blocking caps on high-speed inputs and outputs
  • Hot pluggable for ease of installation and service


Applications

  • 400G Ethernet
  • Data center optical interconnect


Specifications

  • Data rate: 2 x 200 Gbps
  • Supply voltage: 3.3 V
  • Power consumption: 13 W
  • Wavelength: 1270/1290/1310/1330 nm CWDM
  • Operating case temperature: 0°C – 70°C
  • Reach: 2 km with SM fiber