Laser system

A laser system, comprising:

• several laser radiation sources, each of which generates laser radiation which is coupled into a first end of a respective single-mode optical fiber,
• said respective single-mode optical fibers forming a fiber bundle and having second ends lying at a fiber bundle end, laid laser radiation exiting from said second ends and thereby forming a total laser radiation field, and
• an optical transformation means which transforms the total laser radiation field onto an object, wherein:
• said optical transformation means comprises a collimating element which collimates said laser radiation exiting divergently from each individual second end of said single-mode fibers and forms a collimated radiation bundle therefrom,
• said second ends of said optical single-mode fibers rest with an end face against said collimating element,
• said collimating element comprises a carrier,
• said carrier comprises a one-piece, light-permeable plate,
• said collimating element comprises a different collimating optical means for the second end of each single-mode fiber,
• a transition from said collimating optical means to said carrier occurs in an essentially reflection-free manner, and
• said optical transformation means further comprises a focusing element which images said collimated radiation bundle as a whole onto a focal point.

A laser system, comprising:

• several laser radiation sources, each of which generates laser radiation which is coupled into a first end of a respective single-mode optical fiber,
• said respective single-mode optical fibers forming a fiber bundle and having second ends lying at a fiber bundle end, said laser radiation exiting from said second ends and thereby forming a total laser radiation field, and
• an optical transformation means which transforms the total laser radiation field onto an object, wherein:
• said optical transformation means comprises a collimating element which collimates said laser radiation exiting divergently from each individual second end of said single-mode fibers and forms a collimated radiation bundle therefrom,
• said collimating element is formed by a lens array having a plurality of lenses,
• each of said lenses is formed by continuation of the single-mode fiber without a core,
• each of said lenses comprising at least one of a GRIN lens and a diffractive optical lens resulting in an essentially reflection-free transition of the radiation occurring from the single-mode fiber to the lenses, and
• said optical transformation means further comprises a focusing element which images said collimated radiation bundle as a whole onto a focal point.

A laser system, comprising:

• several laser radiation sources, each of which generates laser radiation which is coupled into a first end of a respective single-mode optical fiber,
• said respective single-mode optical fibers forming a fiber bundle and having second ends lying at a fiber bundle end, said laser radiation exiting from said second ends and thereby forming a total laser radiation field, and
• an optical transformation means which transforms the total laser radiation field onto an object, wherein:
• said optical transformation means comprises a collimating element which collimates said laser radiation exiting divergently from each individual second end of said single-mode fibers and forms a collimated radiation bundle therefrom,
• said collimating element is formed by a lens array, wherein said lens array comprises an individual lens for each second end of said optical single-mode fiber, which individually collimates said laser radiation exiting divergently from each individual second end,
• said lens array is arranged on a carrier,
• said carrier comprises a one-piece, light-permeable plate,
• the transition from said fiber bundle to said plate occurs in an essentially reflection-free manner, and
• said optical transformation means further comprises a focusing element which images said collimated radiation bundle as a whole onto a focal point.

A laser system, comprising:

• several laser radiation sources, each of which generates laser radiation which is coupled into a first end of a respective single-mode optical fiber,
• said respective single-mode optical fibers forming a fiber bundle and having second ends lying at a fiber bundle end, said laser radiation exiting from said second ends and thereby forming a total laser radiation field, and
• an optical transformation means which transforms the total laser radiation field onto an object, wherein:
• said optical transformation means comprises a collimating element which collimates said laser radiation exiting divergently from each individual second end of said single-mode fibers and forms a collimated radiation bundle therefrom,
• said collimating element is formed by a lens array,
• said lens array comprises an individual GRIN lens combined with an optical diffractive lens for each second end of said optical single-mode fiber, which individually collimates said laser radiation exiting divergently from each individual second end,
• said lens array is arranged on a carrier,
• said carrier comprises a one-piece, light-permeable plate,
• the transition from said fiber bundle to said plate occurs in an essentially reflection-free manner, and
• said optical transformation means further comprises a focusing element which images said collimated radiation bundle as a whole onto a focal point.