Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Having power driven optical transducer assembly
Reexamination Certificate
2006-06-27
2006-06-27
Klimowicz, William J (Department: 2652)
Dynamic optical information storage or retrieval
Dynamic mechanism optical subsystem
Having power driven optical transducer assembly
C369S300000, C369S013330, C720S662000
Reexamination Certificate
active
07069569
ABSTRACT:
A near-field optical system having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easily attached to the read arm of an optical read/write device without requiring attachment of separate laser elements, and without micropositioning or use of optical microscopy for positioning the lasers. The optical head comprising a single semiconductor substrate including a first region which defines a slider having an air bearing surface, and at least one second, laser region which defines a diode laser, with the diode laser having an emission face which is substantially co-planar with the air bearing surface. The semiconductor substrate preferably includes an active layer, a p-clad layer or reflective layer adjacent a first side of the active region, an n-clad layer or reflective layer adjacent a second side of the active layer, and an n-semiconductor layer adjacent the n-clad layer. A slider region of the semiconductor substrate includes an air bearing surface, adjacent the p-clad layer, which is aerodynamically structured and configured to define a slider. The integral lasers include a p-electrical contact adjacent to the p-clad layer and proximate to the laser emission face, and an n-electrical contact adjacent to the n-clad layer or an n-semiconductor layer. The laser mode is defined by oxidized or ion-diffusion regions associated with the p-clad layer or n-clad layer of the laser. A conductive via through the substrate allows electrical connection with the p-side contact to be achieved from the n-side of the substrate. The optical head is used in a near-field optical system with an optical medium having a phase change layer.
REFERENCES:
patent: 4460977 (1984-07-01), Shimada et al.
patent: 4860276 (1989-08-01), Ukita et al.
patent: 5105408 (1992-04-01), Lee et al.
patent: 5113405 (1992-05-01), Opschoor et al.
patent: 5235609 (1993-08-01), Uchida et al.
patent: 5289313 (1994-02-01), Matsuoka
patent: 5307336 (1994-04-01), Lee et al.
patent: 5497359 (1996-03-01), Mamin et al.
patent: 5559773 (1996-09-01), Kentatsu et al.
patent: 5590110 (1996-12-01), Sato
patent: 5619371 (1997-04-01), Pontius
patent: 5625617 (1997-04-01), Hopkins et al.
patent: 5636190 (1997-06-01), Choi
patent: 5696372 (1997-12-01), Grober et al.
patent: 5712865 (1998-01-01), Chow et al.
patent: 5715226 (1998-02-01), Shimano et al.
patent: 5729393 (1998-03-01), Lee et al.
patent: 5753941 (1998-05-01), Shin et al.
patent: 5784399 (1998-07-01), Sun
patent: 5894467 (1999-04-01), Wang
patent: 5917848 (1999-06-01), Claisse et al.
patent: 5978408 (1999-11-01), Thornton
patent: 6009064 (1999-12-01), Hajjar
patent: 6130779 (2000-10-01), Carlson et al.
patent: 6162590 (2000-12-01), Block et al.
patent: 6567373 (2003-05-01), Kato et al.
patent: 6657927 (2003-12-01), Awano et al.
patent: 6724718 (2004-04-01), Shinohara et al.
patent: 6807131 (2004-10-01), Hesselink et al.
patent: 2001/0030928 (2001-10-01), Cheong et al.
patent: 168699 (1986-01-01), None
patent: 10172166 (1980-06-01), None
patent: 10255302 (1980-09-01), None
patent: 62055989 (1987-03-01), None
patent: 63164036 (1988-07-01), None
patent: 63306546 (1988-12-01), None
patent: 02122452 (1990-05-01), None
patent: 02195531 (1990-08-01), None
patent: 03069032 (1991-03-01), None
patent: 04155988 (1992-05-01), None
patent: 10143895 (1998-05-01), None
patent: 10340468 (1998-12-01), None
patent: 10143895 (1999-10-01), None
patent: WO 99/01277 (1999-01-01), None
patent: WO 00/02199 (2000-01-01), None
patent: WO 200157861 (2001-08-01), None
Gradient-index Microlens formed by Ion-Beam Sputtering/Shimada, et al./Applied Optics. vol. 31, No. 25/'92.
Supersmall Flying Optical Head for Phase Change Recording Media/Ukita, et al./Applied Optics/vol. 28, No. 20/'89.
Applications of an Extremely Short Strong-Feedback Configuration of exteranl-cavity Laser Diode System Fabricated w/GaAs-Based Interation Technology/Ukita, et al./vol. 33, No. 24/'94.
Proposal of Ultrahigh Density Optical Disk System Using a Vertical Cavity Surface Emitting Laser Array/ Kenya Goto/'98.
High Bit Rate and Tera Bytes Optical Memory in a Disk System/Kenya Goto/Spie vol. 3109./'97.
Electron Cyclotron Resonance (ECR) Sputtered Antireflection Coatings on Laser Facets for Optical Memory Applications/Kim, et al./Jpn. J. Appl. Phys. vol. 37/'98/pp. 2201-2202.
Near-Field Analysis of Micro-Aperture Surface Emitting Laser for High Density Optical Data Storage/Shinada, et al./Optical Review vol. 6, No. 6/'99/pp. 486-488.
High-power Laser Light Source for Near-Field Optics and its Application to High-Density Optical Data Storage/Partove, et al./vol. 75, No. 11/'99.
Read/Write Performance and Reliability of a Flying Optical Head using a Monolithically Integrated LD-PD/Ukita, et al./vol. 30, No. 26/Sep. 1991.
High-Density Optical Recording Using a Solid Immersion Lens/Lchimura, et al./vol. 36, No. 19/Jul. 1997.
Flying Head Read/Write Characteristics Using A Monolithically Integrated Laser Diode/Photodiode at a Wavelength of 1.3 μm/Ukita, et al./Spie Vo. 1499/'91.
An Optically Switched Laser (OSL) Head for Optical Recording/Ukita, et al./Spie vol. 1139/'89.
Readout Characteristics of Micro-Optical Head Operated in Bi-Stable Mode/Ukita, et al./vol. 26/'87.
An Optically Accessed Memory Using the Lippmann Process for Information Storage/Fleisher, et al./Government Contract No. AF33-657-11589-Aeronautical Systems/Chap 1, pp. 1-30/'65.
Optical Near-Field Aperture Storage Technique for High Density, High Performance Data Storage/Spie vol. 3864/Afshin Partovi/Jul. 1999.
Optical Near-Field Probe Action in Microdisk Laser with 0.12 Resolution/Yamada, et al./vol. 35 No. 3/'99.
Optical Near-Field Aperture Storage Technique (ONFAST)/Partovi, et al.
Experiments of Novel Optical Floppy Disk Drive Using Phase Change Optical Medium & Quasi-Near Field Optical Head/Goto, et al./Spie vol. 3864/Jul. 1999.
Beam Converging Laser Diode by Taper Ridge Waveguide/Uenishi, et al./Feb. 1988.
Optical Heads Based on Coupled-Cavity Laser Diode/Katagiri, et al./Spie vol. 2514.
Near-Field Optical Data Storage/Terris, et al./No. 2, Woodbury, NY, Us/Jan. 1996.
Proposal of a Near Field Optical Head using a New Solid Immersion Mirror/Ueyanagi, et al./Part of the Joint International Symposium on Optical Memory & Optical Data Storage/Jul. 1999.
Proposal of Optical Near-Field Probe Using Evanescent Field of Microdisk Laser/Sakai, et al./vol. 37/Feb. 1998.
Optimum Reflectivity Design of Laser Diode Facets & Recording Medium for an Integrated Flying Optical Head/Ukita, et al./vol. 32, pp. 5295-5300/Part 1, No. 11B/Nov. 1993.
Storage and Retrieval Systems and Application/Davies, et al./Spie—The International Society for Optical Engineering/vol. 1248 (Eng)/Feb. 1990.
Bashaw Mathew C.
Malmhall Roger K.
Stinson Douglas G.
Thornton Robert L.
Do Caroline T.
Klimowicz William J
Research Investment Network, Inc.
Wong Steve A.
LandOfFree
Near-field optical head system with integrated slider and laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Near-field optical head system with integrated slider and laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-field optical head system with integrated slider and laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3672165