HIGH-POWER, 790NM, 8-BEAM ALGAAS LASER ARRAY WITH A MONITORING PHOTODIODE

A high-power, 790 nm, eight-beam individually addressable AlGaAs laser array on 50-mu-m centers with a monitoring photodiode has been develo ped for high-speed data transfer in optical memory systems. The maximu m output power of each element is over 80 mW. When eight elements are simultaneously operated at 20 mW in APC (Automatic Power Control) mode using the one-beam monitoring control, the total light output variati on is less than 7% at a heatsink temperature between 10 and 50-degrees -C.