| 摘要 |
PURPOSE:To prevent excess loss by sending a continuous light from a feeder side through an optical fiber and allowing a feeding reception side to apply photoelectric conversion to two pulse lights generated by switching the continuous light. CONSTITUTION:A feeder side laser diode(LD) 10 is driven by a drive circuit to generate a continuous light and the continuous light is sent to a feed receiving side through an optical fiber 11. The continuous light is switched and generated as two pulse lights by an optical path changeover switch 12 at the feeding reception side, each light is led to a light receiving face of photo diodes(PD) 1, 2, the light divided into two are pulse lights whose phases are shifted by 180 deg. and each pulse light is collected by a light receiving face of the PDs 1, 2. Then the light is subjected to photoelectric conversion alternately by the PDs 1, 2, an AC signal is generated at the primary side of a transformer T, and the AC signal boosted at the secondary side is rectified into a DC signal by a rectifier circuit 13 and fed to a load, a clock generating section 16 and a driver 17. |
