ViaSat ships forward error correction for 200G

Building on its 100G soft-decision forward error-correction core (SDFEC 66100), ViaSat Inc. (NASDAQ: VSAT) is introducing a 200G version of the product. With switchable overhead rates of 7% and 20%, ViaSat claims that the SDFEC 66200 is one of the most configurable and flexible cores available.

The core is designed to work with PM-(D)16QAM, PM-(D)QPSK, and PM-(D)BPSK modulation formats with high net electrical-coding gains. The advanced DSP and SDFEC cores are power optimized for both 40-nm and 28-nm CMOS processes.

ViaSat introduced the new core at the OFC/NFOEC exhibition March 6-8 in Los Angeles.

To complement the soft decision FEC, ViaSat also provides digital signal processing (DSP) IP cores for 40G, 100G, and 200G coherent optical systems. The company says these DSP designs are field-proven and provide electrical compensation for chromatic dispersion, polarization-mode dispersion (PMD), and nonlinear impairments in the fiber channel.

Both the 100G and 200G cores are available as off-the-shelf, synthesizable ASIC netlists, ready for download. The SDFEC and DSP cores are also available in FPGA netlists.

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