High-power laser light source for near-field optics and its application to high-density optical data storage

Afshin Partovi; David Peale; Matthias Wuttig; Cherry A. Murray; George Zydzik; Leslie Hopkins; Kirk Baldwin; William S. Hobson; James Wynn; John Lopata; Lisa Dhar; Rob Chichester; James H.J. Yeh

doi:10.1063/1.124740

High-power laser light source for near-field optics and its application to high-density optical data storage

Afshin Partovi
, David Peale
, Matthias Wuttig
, Cherry A. Murray
, George Zydzik
, Leslie Hopkins
, Kirk Baldwin
, William S. Hobson
, James Wynn
, John Lopata
, Lisa Dhar
, Rob Chichester
, James H.J. Yeh

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

185 Scopus citations

Abstract

A light source consisting of a laser diode with a metal-coated facet where a small aperture has been created is presented. The very-small aperture lasers (VSAL) is capable of more than a 10⁴× increase of output power over coated tapered fibers with comparable aperture diameters. This extends the range of applications possible with near-field optics and increases the signal-to-noise ratios and data rates obtained in existing applications. Further, the structure can simultaneously generate light and detect sample reflectivity changes. Its application to high-density optical data storage is discussed. Using a 250-nm-square aperture VSAL at 980 nm wavelength, rewritable recording and readback of 250-nm-diam marks at 7.5 Gb/in² has been demonstrated.

Original language	English (US)
Pages (from-to)	1515-1517
Number of pages	3
Journal	Applied Physics Letters
Volume	75
Issue number	11
DOIs	https://doi.org/10.1063/1.124740
State	Published - Sep 13 1999
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.124740

Cite this

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title = "High-power laser light source for near-field optics and its application to high-density optical data storage",

abstract = "A light source consisting of a laser diode with a metal-coated facet where a small aperture has been created is presented. The very-small aperture lasers (VSAL) is capable of more than a 104× increase of output power over coated tapered fibers with comparable aperture diameters. This extends the range of applications possible with near-field optics and increases the signal-to-noise ratios and data rates obtained in existing applications. Further, the structure can simultaneously generate light and detect sample reflectivity changes. Its application to high-density optical data storage is discussed. Using a 250-nm-square aperture VSAL at 980 nm wavelength, rewritable recording and readback of 250-nm-diam marks at 7.5 Gb/in2 has been demonstrated.",

author = "Afshin Partovi and David Peale and Matthias Wuttig and Murray, \{Cherry A.\} and George Zydzik and Leslie Hopkins and Kirk Baldwin and Hobson, \{William S.\} and James Wynn and John Lopata and Lisa Dhar and Rob Chichester and Yeh, \{James H.J.\}",

year = "1999",

month = sep,

day = "13",

doi = "10.1063/1.124740",

language = "English (US)",

volume = "75",

pages = "1515--1517",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - High-power laser light source for near-field optics and its application to high-density optical data storage

AU - Partovi, Afshin

AU - Peale, David

AU - Wuttig, Matthias

AU - Murray, Cherry A.

AU - Zydzik, George

AU - Hopkins, Leslie

AU - Baldwin, Kirk

AU - Hobson, William S.

AU - Wynn, James

AU - Lopata, John

AU - Dhar, Lisa

AU - Chichester, Rob

AU - Yeh, James H.J.

PY - 1999/9/13

Y1 - 1999/9/13

N2 - A light source consisting of a laser diode with a metal-coated facet where a small aperture has been created is presented. The very-small aperture lasers (VSAL) is capable of more than a 104× increase of output power over coated tapered fibers with comparable aperture diameters. This extends the range of applications possible with near-field optics and increases the signal-to-noise ratios and data rates obtained in existing applications. Further, the structure can simultaneously generate light and detect sample reflectivity changes. Its application to high-density optical data storage is discussed. Using a 250-nm-square aperture VSAL at 980 nm wavelength, rewritable recording and readback of 250-nm-diam marks at 7.5 Gb/in2 has been demonstrated.

AB - A light source consisting of a laser diode with a metal-coated facet where a small aperture has been created is presented. The very-small aperture lasers (VSAL) is capable of more than a 104× increase of output power over coated tapered fibers with comparable aperture diameters. This extends the range of applications possible with near-field optics and increases the signal-to-noise ratios and data rates obtained in existing applications. Further, the structure can simultaneously generate light and detect sample reflectivity changes. Its application to high-density optical data storage is discussed. Using a 250-nm-square aperture VSAL at 980 nm wavelength, rewritable recording and readback of 250-nm-diam marks at 7.5 Gb/in2 has been demonstrated.

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DO - 10.1063/1.124740

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EP - 1517

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

ER -

High-power laser light source for near-field optics and its application to high-density optical data storage

Abstract

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