Int. Cl.(52) se"(eg, 38.5/123: 38.5/127. Sing E. s of the AE". split 38.5/141 p (i) silica based,
rare ea oped core naving a rst index of refraction n;(ii) at least one silica based (58) Field of …

An optical fiber comprises a photosensitive core that includes a concentration of a first
material that increases the refractive index of the core and a concentration of a second …

One aspect of the invention is an active optical fiber com prising: a silica based core having
a first index of refraction n; and at least one silica based cladding surrounding the core, the …

An optical fiber can include a glass core that is multimode at a selected wavelength and that
comprises an index of refraction and a diameter D core, a glass cladding disposed about …

A modular and scalable high-power fiber laser system is configurable to generate 1 kW or
more of laser output, and includes one or more separable pump modules separately …

Disclosed herein are methods, apparatus, and systems for providing an optical beam
delivery system, comprising an optical fiber including a first length of fiber comprising a first …

Disclosed is an optical fiber article for receiving pump radiation of a first wavelength for
amplifying or generating radiation of a second wavelength. The optical fiber article includes …

An apparatus includes a laser system that includes a first fiber having an output end and
situated to propagate a first laser beam with a first beam parameter product (bpp) and a …

In one aspect, the invention relates to optical fibers and systems that include such fibers. In
another aspect, the invention provides an optical fiber that includes a core, a cladding …

A system includes an optical fiber situated to propagate a laser beam received from a laser
source to an output of the optical fiber, a first cladding light stripper optically coupled to the …