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1. WO1996005529 - TEMPERATURE COMPENSATED FIBER FABRY-PEROT FILTERS

Publication Number WO/1996/005529
Publication Date 22.02.1996
International Application No. PCT/US1995/009911
International Filing Date 04.08.1995
Chapter 2 Demand Filed 07.03.1996
IPC
G01J 3/26 2006.01
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3Spectrometry; Spectrophotometry; Monochromators; Measuring colours
12Generating the spectrum; Monochromators
26using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filter
G02B 6/34 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
26Optical coupling means
34utilising prism or grating
G02B 6/38 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
36Mechanical coupling means
38having fibre to fibre mating means
G02B 6/42 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24Coupling light guides
42Coupling light guides with opto-electronic elements
CPC
G01J 3/26
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3Spectrometry; Spectrophotometry; Monochromators; Measuring colours
12Generating the spectrum; Monochromators
26using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
G02B 6/29359
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
29346operating by wave or beam interference
29358Multiple beam interferometer external to a light guide, e.g. Fabry-Pérot, etalon, VIPA plate, OTDL plate, continuous interferometer, parallel plate resonator
29359Cavity formed by light guide ends, e.g. fibre Fabry Pérot [FFP]
G02B 6/29395
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
29379characterised by the function or use of the complete device
29395configurable, e.g. tunable or reconfigurable
G02B 6/29398
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
28having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293with wavelength selective means
29379characterised by the function or use of the complete device
29398Temperature insensitivity
G02B 6/3845
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
36Mechanical coupling means
38having fibre to fibre mating means
3807Dismountable connectors, i.e. comprising plugs
3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
3845ferrules comprising functional elements, e.g. filters
G02B 6/4226
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
42Coupling light guides with opto-electronic elements
4201Packages, e.g. shape, construction, internal or external details
4219Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
422Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
4226Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount
Applicants
  • MICRON OPTICS, INC. [US/US]; Suite 140 2801 Buford Highway Atlanta, GA 30329, US
Inventors
  • MILLER, Calvin, M.; US
  • MILLER, Jeffrey, W.; US
Agents
  • GREENLEE, Lorance, L. ; Greenlee and Winner Suite 201 5370 Manhattan Circle Boulder, CO 80303, US
Priority Data
08/287,82309.08.1994US
94309028.205.12.1994EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TEMPERATURE COMPENSATED FIBER FABRY-PEROT FILTERS
(FR) FILTRES DE FABRY-PEROT A FIBRES COMPENSE EN TEMPERATURE
Abstract
(EN)
This invention relates to FFPs with improved means for alignment of optical fibers. The invention provides ferrule holders (20B) with shaped ferrule passageways (22), as components of FFP alignment fixtures, in which optical fiber ends can be readily aligned using the ferrule rotary alignment method. Ferrule holders (20B) for use in temperature compensated FFPs include those fabricated from low temperature coefficient alloys, such as KovarTM. Ferrule holders optionally have a composite structure facilitating temperature compensation required for applications to PZT-tuned FFPs. These ferrule holders have a core and peripheral portion made of materials having different thermal expansion coefficients. The holder core in contact with the ferrule (10, 11) is made of a material having a thermal expansion coefficient substantially matched to that of the ferrule material. In addition, ferrule holders are provided with a means for changing the points of contact between a secured ferrule and its holder which allows wavelength drift as a function of temperature in FFPs to be adjusted.
(FR)
L'invention porte sur un procédé amélioré d'alignement des fibres optiques à l'aide d'un filtre de Fabry-Perot à fibres (FFP). Elle recourt à des supports de manchons (20B) traversés par des conduits (22) recevant les manchons comme composants des armatures d'alignement des FFP permettant l'alignement facile des extrémités des fibres par rotation des manchons. Les supports de manchons (20B) utilisés dans les FFP à compensation thermique comprennent ceux fabriqués en alliages à faible coefficient de température tels que le KovarTM. Lesdits supports peuvent facultativement présenter une structure composite favorisant le niveau de compensation thermique requis pour les applications des FFP à syntonisation PZT; ils présentent un noyau et une partie périphérique faite de matériaux présentant différents coefficients de dilatation, le noyau en contact avec le manchon (10, 11) étant fait d'un matériau dont le coefficient de dilatation correspond sensiblement à celui du matériau du manchon. De plus, les supports sont pourvus d'un moyen modifiant les points de contact entre un manchon en place et son support, ce qui permet d'ajuster la dérive en longueur d'onde en fonction de la température du FFP.
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