Patent ID: 8306080
Filing Date: 2012-11-06
Classification: B82Y,H01S

Abstract:
1. A surface emitting laser apparatus, comprising: an arithmetic processing unit that includes an I/O unit through which an instruction is externally input and a core unit that performs an operation based on the instruction input through the I/O unit and outputs a differential voltage signal modulated with a predetermined amplitude according to a result of the operation; capacitors respectively arranged on output paths of the differential voltage signal; and a surface emitting laser device that is directly connected to the arithmetic processing unit via the capacitors, wherein an I/O voltage and a core voltage are externally supplied to the I/O unit and the core unit, respectively, the arithmetic processing unit generates a driving voltage signal by superimposing the differential voltage signal after passing the capacitors with the core voltage commonly supplied as a bias voltage without stepping up or down the core voltage and without amplifying the differential voltage signal and supplies the generated driving voltage signal to the surface emitting laser device.