Holographic laser module with dual wavelength for digital versatile disc optical heads

Hsi Fu Shih; Tzu Ping Yang; Mark O. Freeman; Jinn Kang Wang; Hon Fai Yau; Der-Ray Huang

doi:10.1143/JJAP.38.1750

Holographic laser module with dual wavelength for digital versatile disc optical heads

Hsi Fu Shih^*, Tzu Ping Yang, Mark O. Freeman, Jinn Kang Wang, Hon Fai Yau, Der-Ray Huang

^*Corresponding author for this work

Institute of Lighting and Energy Photonics

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

18 Scopus citations

Abstract

Backward compatibility with CD-R necessitates having two laser sources in the digital versatile disc (DVD) pickup head. The dual-wavelength optical head complicates pickup design and enlarges the volume of the head. Moreover, it increases the number of components and assembly cost. In this paper, we present a new design for a dual-wavelength holographic pickup-head module. Packaged together in the module are two laser diodes, photodiodes and a holographic optical element (HOE) for diffracting reflected light from the disk onto the corresponding photodetectors. This module can be used as the core of an optical head capable of reading DVD, CD and CD-R.

Original language	English
Pages (from-to)	1750-1754
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	38
Issue number	3 B
DOIs	https://doi.org/10.1143/JJAP.38.1750
State	Published - 1 Dec 1999

Keywords

Compact disc
Compact disc-recordable
Digital versatile disc
Holographic laser module
Holographic optical element
Holographic pickup-head module
Optical head
Pickup head

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title = "Holographic laser module with dual wavelength for digital versatile disc optical heads",

abstract = "Backward compatibility with CD-R necessitates having two laser sources in the digital versatile disc (DVD) pickup head. The dual-wavelength optical head complicates pickup design and enlarges the volume of the head. Moreover, it increases the number of components and assembly cost. In this paper, we present a new design for a dual-wavelength holographic pickup-head module. Packaged together in the module are two laser diodes, photodiodes and a holographic optical element (HOE) for diffracting reflected light from the disk onto the corresponding photodetectors. This module can be used as the core of an optical head capable of reading DVD, CD and CD-R.",

keywords = "Compact disc, Compact disc-recordable, Digital versatile disc, Holographic laser module, Holographic optical element, Holographic pickup-head module, Optical head, Pickup head",

author = "Shih, {Hsi Fu} and Yang, {Tzu Ping} and Freeman, {Mark O.} and Wang, {Jinn Kang} and Yau, {Hon Fai} and Der-Ray Huang",

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pages = "1750--1754",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

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Holographic laser module with dual wavelength for digital versatile disc optical heads. / Shih, Hsi Fu; Yang, Tzu Ping; Freeman, Mark O.; Wang, Jinn Kang; Yau, Hon Fai; Huang, Der-Ray.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 38, No. 3 B, 01.12.1999, p. 1750-1754.

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

TY - JOUR

T1 - Holographic laser module with dual wavelength for digital versatile disc optical heads

AU - Shih, Hsi Fu

AU - Yang, Tzu Ping

AU - Freeman, Mark O.

AU - Wang, Jinn Kang

AU - Yau, Hon Fai

AU - Huang, Der-Ray

PY - 1999/12/1

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AB - Backward compatibility with CD-R necessitates having two laser sources in the digital versatile disc (DVD) pickup head. The dual-wavelength optical head complicates pickup design and enlarges the volume of the head. Moreover, it increases the number of components and assembly cost. In this paper, we present a new design for a dual-wavelength holographic pickup-head module. Packaged together in the module are two laser diodes, photodiodes and a holographic optical element (HOE) for diffracting reflected light from the disk onto the corresponding photodetectors. This module can be used as the core of an optical head capable of reading DVD, CD and CD-R.

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KW - Compact disc-recordable

KW - Digital versatile disc

KW - Holographic laser module

KW - Holographic optical element

KW - Holographic pickup-head module

KW - Optical head

KW - Pickup head

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JO - Japanese Journal of Applied Physics

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