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1. (WO2001037018) TAPERED PLANER OPTICAL WAVEGUIDE
PCT Biblio. Data
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Pub. No.:
WO/2001/037018
International Application No.:
PCT/US2000/026639
Publication Date:
25.05.2001
International Filing Date:
27.09.2000
Chapter 2 Demand Filed:
05.04.2001
IPC:
G02B 6/12
(2006.01),
G02B 6/122
(2006.01),
G02B 6/30
(2006.01),
G02B 6/42
(2006.01)
[IPC code unknown for ERROR IPC Code incorrect: invalid section (A=>H)!]
G
PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10
of the optical waveguide type
12
of the integrated circuit kind
122
Basic optical elements, e.g. light-guiding paths
[IPC code unknown for ERROR IPC Code incorrect: invalid section (A=>H)!]
G
PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24
Coupling light guides
42
Coupling light guides with opto-electronic elements
Applicants:
SPARKOLOR CORPORATION
[US/US]; 2230 Martin Avenue, Santa Clara, CA 95050 (US)
Inventors:
DEACON, David, A., G.
; (US)
Agent:
HOLMES, Miles, Keeton
; Novapat International S.A:, 9, rue du Valais, CH-1202 Genève (CH)
Priority Data:
09/438,886
12.11.1999
US
Title
(EN)
TAPERED PLANER OPTICAL WAVEGUIDE
(FR)
GUIDE D'ONDES OPTIQUES DE STRUCTURE PLANE ET A RACCORD PROGRESSIF
Abstract:
(EN)
A digitally tunable laser source, a tapered waveguide, a lensed waveguide, a tunable laser and methods for making and tuning these devices are described. The laser source includes materials with negative index of refraction dependence on temperature and with temperature independent coincidence between resonator modes and a set of specified frequencies such as DWDM channels in telecommunications applications. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. An advantageous embodiment of a tapered waveguide may be used to efficiently couple different size waveguides, such as in a resonator containing both a semiconductor diode amplifier waveguide and a planar waveguide structure for coupling to an optical fiber. An advantageous embodiment of a lensed planar waveguide may be used to efficiently couple to a different size waveguide such as a semiconductor diode amplifier waveguide.
(FR)
L'invention se rapporte à une source laser susceptible d'être accordée de manière numérique, à un guide d'ondes à raccord progressif, à un guide d'ondes à lentilles, à un laser accordable et à des procédés permettant de fabriquer et d'accorder ces dispositifs. La source laser comporte des matières caractérisées par une dépendance négative de l'indice de réfraction par rapport à la température et par une coïncidence indépendante de la température entre les modes résonateur et un ensemble de fréquences spécifiées telles que des canaux à multiplexage en longueur d'onde dense (DWDM) dans des applications de télécommunications. L'intervalle spectral libre peut être ajusté pour égaler une fraction rationnelle de l'intervalle de fréquence spécifié. Une réalisation avantageuse d'un guide d'ondes à raccord progressif peut être mise en oeuvre pour coupler efficacement des guides d'ondes de dimensions différentes, comme dans un résonateur contenant à la fois un guide d'ondes à amplificateur à diode à semi-conducteurs et une structure de guide d'ondes plane, en vue du couplage à une fibre optique. Une réalisation avantageuse d'un guide d'ondes de structure plane, à lentilles, peut être mise en oeuvre efficacement en vue du couplage à un guide d'ondes de dimension différente tel qu'un guide d'ondes à amplificateur à diode à semi-conducteurs.
Designated States:
CN, JP, KR.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language:
English (
EN
)
Filing Language:
English (
EN
)