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Title: US5677924: Resonant-cavity optical device
[ Derwent Title ]


Country: US United States of America

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6 pages

 
Inventor: Bestwick, Timothy David; Oxford, United Kingdom

Assignee: Sharp Kabushiki Kaisha, Osaka, Japan
other patents from SHARP KABUSHIKI KAISHA (SHARP CORPORATION) (508240) (approx. 9,297)
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Published / Filed: 1997-10-14 / 1995-11-13

Application Number: US1995000556711

IPC Code: Advanced: H01L 33/00; H01S 5/00; H01S 5/042; H01S 5/183; H01S 5/20; H01S 5/42;
Core: more...
IPC-7: H01S 3/19;

ECLA Code: H01L33/10C; H01L33/46C; H01S5/042E; H01S5/183; T01S5/20; T01S5/42B; T01L33/40C;

U.S. Class: Current: 372/096; 257/E33.069; 372/046.01;
Original: 372/096; 372/046;

Field of Search: 372/092,46,45,96 257/099

Priority Number:
1994-11-14  GB1994000022950

Abstract:     A resonant-cavity optical device, eg a vertical cavity surface emitting laser, has a substrate upon which are provided a Bragg reflector multilayer bottom mirror, a semiconductor lower spacer region, an active region, and a dielectric region which surrounds the bottom mirror, the active region and the lower spacer region. An upper spacer region and a top mirror are provided on top of the active region. The top mirror has a window in which a metal terminal is provided. The terminal is in direct contact with the upper spacer region which is formed of a transparent electrically conducting oxide, eg indium tin oxide.

Primary / Asst. Examiners: Davie, James W.;

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Designated Country: DE FR GB 

Family: Show 11 known family members

First Claim:
Show all 15 claims
What is claimed is:     1. A resonant-cavity optical device comprising an active region, an electrical terminal, and a spacer region disposed between said active region and said electrical terminal, wherein said electrical terminal is electrically connected with said active region by way of said spacer region and said spacer region is formed of a transparent, electrically conducting oxide.

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Forward References: Show 30 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (30)   |   Backward references (4)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 9pp US5115441  1992-05 Ropf et al.  AT&T Bell Laboratories Vertical cavity surface emmitting lasers with transparent electrodes
Buy PDF- 20pp US5245622  1993-09 Jewell  Bandgap Technology Corporation Vertical-cavity surface-emitting lasers with intra-cavity structures
Buy PDF- 7pp US5266503  1993-11 Wang et al.  Hewlett-Packard Company Method of making a surface emitting laser with oxygen ion implants followed by epitaxial regrowth
Buy PDF- 9pp US5295147  1994-03 Jewell et al.  Photonics Research Incorporated Vertical cavity, surface-emitting laser with expanded cavity
       
Foreign References:
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PDF
Publication Date IPC Code Assignee   Title
Buy PDF- 18pp EP0540239 1993-05  H01S 3/085 AMERICAN TELEPHONE & TELEGRAPH Surface emitting laser 
Buy PDF GB1382401 1975-01  H01S 3/16 INSTITUT POLUPROVODNIKOV AKADEMII NAUK UKRAIN SKOI SSR SOLID STATE LASER 


Other Abstract Info: CHEMABS 125(02)021952B DERABS G1996-232382

Other References:
  • Search Report for UK Appl. 9422950.7, mailed Mar. 6, 1995.
  • Jewell et al, IEEE Journal of Quantum Electronics, vol. 27, No. 6, Jun. 1991, "Veritcal-Cavity Surface-Emitting Lasers: Deisgn, . . . ".
  • Matin et al, Electronics Letters, Feb. 1994, vol. 30, No. 4, pp. 318-320, "Optically Transparent Indium-Tin-Oxide (ITO) Ohmic Contacts . . . ". (3 pages) Cited by 2 patents [ISI abstract]
  • Cava et al, Appl. Phys. Lett. 64 (16) Apr. 1994, pp. 2071-2072, "GaInO3 : A New Transparent Conducting Oxide ". (2 pages) [ISI abstract]
  • Gerard et al, Solid-State Electronics, vol. 37, No. 4-6, pp. 1341-1344, 1994, "Photonic Bandgap of Two-Dimensional Dielectric Crystals". (4 pages) Cited by 3 patents [ISI abstract]
  • Lee et al, J. Vac. Sci. Technol. A 11(5), Sep./Oct. 1993, pp. 2742-2746, "Electronic and Optical Properties of Room Temperature Sputter". (5 pages) Cited by 3 patents [ISI abstract]
  • Scherer et al. Electronics Letters, 18 Jun. 1992, vol. 28, No. 13, pp. 1224-1226, "Fabrication of Low Threshold Voltage Microlasers". (3 pages) Cited by 6 patents [ISI abstract]
  • Hasnain et al, Appl. Phys. Lett. 63(10), Sep. 1993, pp. 1307-1309, "Low, Threshold Buried Heterostructure Vertical Cavity Surface . . . ". (3 pages) Cited by 7 patents [ISI abstract]
  • Iga et al, IEEE Journal of Quantum Electronics, vol. 24, No. 9, Sep. 1988, "Surface Emitting Semiconductor Lasers".
  • Search Report for European Appl. 95308104.9, mailed Feb. 28, 1996.
  • Ishikawa et al, J. Appl. Phys. 66(5), Sep. 1, 1989, "New Double-Heterostructure Indium-Tim Oxide/InGaAsP/AIGaAs Surface Light-Emitting Diodes . . . ".
  • Dowling et al, J. Appl. Phys. 75(4), 15 Feb. 1994, "The Photonic Band Edge Laser: A New Approach to Gain Enhancement," pp. 1896-1899. (4 pages) Cited by 10 patents [ISI abstract]
  • Schubert et al, Appl. Phys Lett. 60(8), 24 Feb. 1992, "Resonant Cavity Light-Emitting Diode," pp. 921-923. (3 pages) Cited by 29 patents [ISI abstract]


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