 SAN JOSE, Calif., Sept. 13, 2021 PRNewswire -- Lumentum Holdings Inc. Lumentum, a market-leading designer and manufacturer of innovative optical and photonic products, today announced the formation of the SmartTuning Multi-Source Agreement MSA group with other industry suppliers to standardize an interoperable self-tuning feature for full-band tunable dense wavelength division multiplexing DWDM pluggable optical transceivers. 