Publication

Unidirectional all-fiber thulium-doped laser based on theta cavity and fiber Bragg grating as filtering element

Camille Sophie Brès, Svyatoslav Kharitonov
2016
Conference Papers

Abstract

We present first all-fiber unidirectional ring thulium-doped laser, based on isolator-free theta cavity configuration and fiber Bragg mirror as filtering element. Laser provides 1W output power with 30% slope efficiency, and linewidth of about 0.2nm.

Official source

https://infoscience.epfl.ch/entities/publication/79e079a3-d83e-4375-8b74-bfc7ae972587

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Camille Sophie Brès, Svyatoslav Kharitonov
2016
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/79e079a3-d83e-4375-8b74-bfc7ae972587

About this result

Related concepts (12)

Distributed Bragg reflector

A distributed Bragg reflector (DBR) is a reflector used in waveguides, such as optical fibers. It is a structure formed from multiple layers of alternating materials with different refractive index, or by periodic variation of some characteristic (such as height) of a dielectric waveguide, resulting in periodic variation in the effective refractive index in the guide. Each layer boundary causes a partial reflection and refraction of an optical wave.

Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light that is coherent.

Fiber laser

A fiber laser (or fibre laser in Commonwealth English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. They are related to doped fiber amplifiers, which provide light amplification without lasing. Fiber nonlinearities, such as stimulated Raman scattering or four-wave mixing can also provide gain and thus serve as gain media for a fiber laser.

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