Design of Single-Path Optical Pickup Head With Three Wavelengths Using Integrated Optical Unit

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题名:	Design of Single-Path Optical Pickup Head With Three Wavelengths Using Integrated Optical Unit
作者:	Shih,HF;Lu,WC;Chang,JY
贡献者:	光電科學研究所
关键词:	BLU-RAY DISC;COMPATIBLE OBJECTIVE LENS;2-WAVELENGTH LASER-DIODE;ELEMENT
日期:	2009
上传时间:	2010-06-29 19:41:01 (UTC+8)
出版者:	中央大學
摘要:	For the purpose of backward compatibility to the CD and DVD specifications, the optical pickup head (OPH) design with multiple laser wavelengths and numerical apertures (NAs) is necessary for the Blu-ray Disc (BD) system. By utilizing the features of an integrated optical unit (IOU) and a holographic optical element (HOE), this study presents a novel three-wavelength BD OPH configuration with compactness in a single optical path. There are two OPH designs with the astigmatic and knife-edge focusing detection methods applied to the IOU configurations in this paper, respectively. The simulation results are satisfactory and show the feasibility of the designs.
關聯:	IEEE TRANSACTIONS ON MAGNETICS
显示于类别:	[光電科學研究所] 期刊論文

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