The Continuous-Wave Wavelength Division Multiplexing Multi-Source Agreement (CW-WDM MSA) Group has released its initial set of specifications for 8-, 16-, and 32-wavelength optical sources. The specifications, which cover three spans in the O-Band, are expected to prove influential in the development of co-packaged optics technology as well as products for machine learning and optical computing.
The frequency assignments for the 8-, 16-, and 32-wavelength grids cover multiple grid spacings, and the specification features support for fixed and flexible grids. The specifications cover both a modular optical source with each output port carrying a single wavelength and an integrated optical source with each output port carrying all the wavelengths. A variety of output power classes are defined as are optical parameters and measurement methods, including relative intensity noise, side mode suppression ratio (SMSR), and linewidth. The specifications are available for download on the CW-WDM MSA website.
“The CW-WDM MSA just published an 8-, 16-, and 32-wavelength O-Band laser source standard for use in optical transceivers for emerging advanced datacom applications,” commented Chris Cole, chair of the MSA. “Laser sources are the critical component in optical communications and having an agreed set of grids creates great opportunities for transceiver and laser suppliers to develop innovative products.”
The CW-WDM MSA debuted in June 2020 (see “CW-WDM MSA targets optical laser sources for greater than four channels”). Promoter members include Arista Networks, Ayar Labs, II-VI, imec, Intel, Lumentum, Luminous Computing, MACOM, Quintessent, Sivers Photonics, and Sumitomo Electric.
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