Laser expander design of highly efficient Blu-ray disc pickup head

Wen Shing Sun; Kun Di Liu; Jui Wen Pan; Chuen Lin Tien; Min Sheng Hsieh

doi:10.1364/OE.17.002235

Laser expander design of highly efficient Blu-ray disc pickup head

Wen Shing Sun, Kun Di Liu, Jui Wen Pan, Chuen Lin Tien, Min Sheng Hsieh

Department of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We present a collimator design with a horizontal beam expander for a Blu-ray Disc pickup head. The design transforms the shape of a laser diode beam from an elliptical into circular which achieves higher efficiency in the pickup head system. In this research, we suggest two ways to do the beam expander. One way is to use two cylindrical lenses, and the other is to use two prisms.

Original language	English
Pages (from-to)	2235-2246
Number of pages	12
Journal	Optics Express
Volume	17
Issue number	4
DOIs	https://doi.org/10.1364/OE.17.002235
State	Published - 16 Feb 2009

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abstract = "We present a collimator design with a horizontal beam expander for a Blu-ray Disc pickup head. The design transforms the shape of a laser diode beam from an elliptical into circular which achieves higher efficiency in the pickup head system. In this research, we suggest two ways to do the beam expander. One way is to use two cylindrical lenses, and the other is to use two prisms.",

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AU - Liu, Kun Di

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AU - Tien, Chuen Lin

AU - Hsieh, Min Sheng

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Laser expander design of highly efficient Blu-ray disc pickup head

Abstract

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