In this report, we propose the new integrated optical unit for MD pickups using polarized holograms, and PS-DPP (Phase-Shift Differential Push-Pull) method for RES (Radial Error Signal) detection.

• 鉴于这篇报导，我们建议新的集成光学单元能被用来使全息图集化，PS-DPP方法将被用作RES（重检错误信号）检测。