Optical fiber and laser oscillator using same
AssigneeMitsuboshi Diamond Industrial Co., Ltd.
InventorsChristian Schaefer, Masanao Murakami
Life of this patent
Estimating the term…
Abstract
An optical fiber includes a first optical fiber body, a second optical fiber body and a first end cap. The first optical fiber body includes a first core and a first cladding. The second optical fiber body includes a second core and a second cladding, and is joined at a first end surface thereof to a first end surface of the first optical fiber body. The first end cap has light permeability and is joined to a second end surface of the second optical fiber body. The first core is doped with a laser medium. A mass content of the laser medium in the second core is lower than that of the laser medium in the first core.
Claims9
An optical fiber for generating or amplifying a laser light through use of an excitation light, comprising:
- a first optical fiber body including a first core and a first cladding;
- a second optical fiber body including a second core and a second cladding and joined at a first end surface thereof to a first end surface of the first optical fiber body;
- and
- a first end cap having light permeability and joined to a second end surface of the second optical fiber body, wherein
- the first core is doped with a laser medium,
- a mass content of the laser medium in the second core is lower than a mass content of the laser medium in the first core;
- and
- wherein the second core has a diameter larger than a diameter of the first core and is designed to have a length whereby reflection of an output light from the first core is prevented within the second core.
Dependencies are inferred from the claim text.