SAN JOSE, Calif.--( BUSINESS WIRE )--Lumentum Holdings Inc. ("Lumentum"), a global leader in optical and photonic solutions for the cloud and networking markets, announced today that it has earned the EcoVadis Platinum Medal for a third consecutive year — representing the highest level of recognition for sustainability performance. Lumentum remains in the top one percent of companies assessed by EcoVadis over the past year, with its overall score rising to 83, up from 80. Lumentum demonstrated im...