Optical fiber for an optical fiber laser, method for fabricating the same, and optical fiber laser

The optical fiber 1 for an optical fiber laser is provided with a rare earth element doped core 2 doped with a rare earth element, a cladding 3 formed at an outer periphery of the rare earth element doped core 2, a core vicinity part 3' of the cladding 3 provided in vicinity of the rare earth e...

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Bibliographische Detailangaben
Hauptverfasser:	HONGO AKIHITO, KOJIMA SEIJI, YAO BING, OHSONO KAZUMASA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The optical fiber 1 for an optical fiber laser is provided with a rare earth element doped core 2 doped with a rare earth element, a cladding 3 formed at an outer periphery of the rare earth element doped core 2, a core vicinity part 3' of the cladding 3 provided in vicinity of the rare earth element doped core 2 being doped with a refractive index increasing agent which reduces a relative refractive index difference between the core vicinity part 3' and the rare earth element doped core 2 to be 0.1% or less.