GEODESIC DEVICE COMPRISING A LASER SOURCE
Geodetic unit (1), especially a total station or distance meter, has a laser light source with at least a radiation producing laser diode (2b). The latter has an external cavity with at least a mono-selective component (2d) for selection of a single mode characteristic or monochromatic laser radiati...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
07.06.2006
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | Geodetic unit (1), especially a total station or distance meter, has a laser light source with at least a radiation producing laser diode (2b). The latter has an external cavity with at least a mono-selective component (2d) for selection of a single mode characteristic or monochromatic laser radiation. The selective component can be a linear emitter or a vertical semiconductor emitter driven by an external cavity in which there is a mono-selective component, e.g. a monomode fiber or resonating mirror that results in a mono-selective resonance effect. To compensate the longer pulse duration caused by the elongated cavity, components with negative dispersion can be used for pulse compression. |
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AbstractList | Geodetic unit (1), especially a total station or distance meter, has a laser light source with at least a radiation producing laser diode (2b). The latter has an external cavity with at least a mono-selective component (2d) for selection of a single mode characteristic or monochromatic laser radiation. The selective component can be a linear emitter or a vertical semiconductor emitter driven by an external cavity in which there is a mono-selective component, e.g. a monomode fiber or resonating mirror that results in a mono-selective resonance effect. To compensate the longer pulse duration caused by the elongated cavity, components with negative dispersion can be used for pulse compression. |
Author | GAECHTER, BERNHARD BRAUNECKER, BERNHARD |
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Discipline | Medicine Chemistry Sciences Physics |
DocumentTitleAlternate | APPAREIL GEODESIQUE EQUIPE D'UNE SOURCE LASER GEODÄTISCHES GERÄT MIT EINER LASERQUELLE |
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RelatedCompanies | LEICA GEOSYSTEMS AG |
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Snippet | Geodetic unit (1), especially a total station or distance meter, has a laser light source with at least a radiation producing laser diode (2b). The latter has... |
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SubjectTerms | ANALOGOUS ARRANGEMENTS USING OTHER WAVES BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DEVICES USING STIMULATED EMISSION ELECTRICITY GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING |
Title | GEODESIC DEVICE COMPRISING A LASER SOURCE |
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