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1. WO2002025705 - QUANTUM DOT DEVICES

Publication Number WO/2002/025705
Publication Date 28.03.2002
International Application No. PCT/US2001/029561
International Filing Date 21.09.2001
Chapter 2 Demand Filed 25.02.2002
IPC
H01S 5/12 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator
12the resonator having a periodic structure, e.g. in distributed feed-back  lasers
H01S 5/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator
14External cavity lasers
H01S 5/183 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator
18Surface-emitting lasers
183having a vertical cavity
H01S 5/34 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
30Structure or shape of the active region; Materials used for the active region
34comprising quantum well or superlattice structures, e.g. single quantum well lasers , multiple quantum well lasers or graded index separate confinement heterostructure lasers
H01S 5/40 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02-H01S5/30128
CPC
B82Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
10Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
B82Y 20/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
20Nanooptics, e.g. quantum optics or photonic crystals
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
H01S 5/1228
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator ; , e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
12the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
1228DFB lasers with a complex coupled grating, e.g. gain or loss coupling
H01S 5/143
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator ; , e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
14External cavity lasers
141using a wavelength selective device, e.g. a grating or etalon
143Littman-Metcalf configuration, e.g. laser - grating - mirror
H01S 5/183
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
10Construction or shape of the optical resonator ; , e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
18Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
183having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
Applicants
  • SCIENCE & TECHNOLOGY CORPORATION @ UNM [US]/[US]
Inventors
  • STINTZ, Andreas
  • VARANGIS, Petros, N.
  • MALLOY, Kevin, J.
  • LESTER, Luke, F.
  • NEWELL, Timothy, C.
  • LI, Hua
Agents
  • VAN GIESON, Edward, A.
Priority Data
09/961,56020.09.2001US
60/234,34422.09.2000US
60/238,03006.10.2000US
60/252,08421.11.2000US
60/272,30702.03.2001US
60/276,18616.03.2001US
60/316,30531.08.2001US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) QUANTUM DOT DEVICES
(FR) DISPOSITIFS A POINTS QUANTIQUES
Abstract
(EN)
Quantum dot active region structures are disclosed. In a preferred embodiment, the distribution in dot size and the sequence of optical transition energy values associated with the quantum confined states of the dots are selected to facilitate forming a continuous optical gain spectrum over an extended wavelength range. In one embodiment, the quantum dots are self-assembled quantum dots with a length-to-width ratio of at least three along the growth plane. In one embodiment, the quantum dots are formed in quantum wells for improved carrier confinement. In other embodiments, the quantum dots are used as the active region in laser devices, including tunable lasers and monolithic multi-wavelength laser arrays.
(FR)
La présente invention concerne des structures de région active à points quantiques. Dans une forme de réalisation préférée, la distribution de la grosseur des points et la séquence des valeurs d'énergie de transition optique associées aux états confinés quantiques des points sont sélectionnées pour faciliter la formation d'un spectre à gain optique continu sur une plage de longueur d'onde étendue. Dans une autre forme de réalisation, les points quantiques sont des points quantiques auto-assemblés présentant un rapport longueur-largeur au moins égal à trois le long du plan de croissance. Dans une forme de réalisation, les points quantiques sont formés dans des puits quantiques pour assurer un meilleur confinement du support. Dans d'autres formes de réalisation, les points quantiques sont utilisés en tant que région active dans des dispositifs laser, y compris dans des lasers accordables et dans des réseaux de lasers monolithiques à longueurs d'onde multiples.
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