Artificial intelligence chipmaker Marvell Technology announced it will acquire data center optical device maker Lumentum in an all-stock deal valued at approximately $80 billion, aiming to expand its optical interconnect technology product line. Under the terms announced Monday, Lumentum shareholders will receive 4.5 shares of Marvell Technology common stock for each share they hold; including assumed debt, the total valuation of the transaction is approximately $115 billion.