Abstract: Energy harvesting system for harvesting electric energy from a power cable including a power cable having at least one core that includes in a radial direction: an electric conductor; an insulation system surrounding the electric conductor comprising at least an insulating layer; a ground shield surrounding the insulation system; and at least one insulated metallic electrode positioned between the electric conductor and the ground shield. At least a part of an outer surface of the at least one insulated metallic electrode is not in direct contact with the ground shield. The at least one insulated metallic electrode is spaced from the electric conductor.

Abstract: A multimode optical fiber for continuous transmission of electromagnetic radiation at high power, wherein the fiber defines a fiber axis and includes a core and a cladding surrounding the core, and wherein the multimode optical fiber is a multimode graded-index fiber, the refraction index profile in the fiber essentially following formula (1): n ? ( r ) = { n 1 ? [ 1 - 2 ? ( r a ) g ? ? ] 1 ? / ? 2 , r < a n 2 , r > a ( 1 ) ? = n 1 2 - n 2 2 2 ? n 1 2 ( A ) NA = n 1 2 - n 2 2 ( B ) where ? is formula (A), r is the distance from the fiber axis, n(r) is the nominal refractive index as a function of distance from the fiber axis, n1 is the nominal refractive index on the axis of the fiber, n2 is the refractive index of the cladding, a is the core radius, and g is a parameter that defines the shape of the profile, where the core diameter 2a is between 90 UM and 190 ?M, the parameter g is between 1.

Abstract: A multimode optical fiber for continuous transmission of electromagnetic radiation at high power, wherein the fiber defines a fiber axis and includes a core and a cladding surrounding the core, and wherein the multimode optical fiber is a multimode graded-index fiber, the refraction index profile in the fiber essentially following formula (1): n ? ( r ) = { n 1 ? [ 1 - 2 ? ( r a ) g ? ? ] 1 ? / ? 2 , r < a n 2 , r > a ( 1 ) ? = n 1 2 - n 2 2 2 ? n 1 2 ( A ) NA = n 1 2 - n 2 2 ( B ) where ? is formula (A), r is the distance from the fiber axis, n(r) is the nominal refractive index as a function of distance from the fiber axis, n1 is the nominal refractive index on the axis of the fiber, n2 is the refractive index of the cladding, a is the core radius, and g is a parameter that defines the shape of the profile, where the core diameter 2a is between 90 UM and 190 ?M, the parameter g is between 1.