Apparatus for forming laser radiation, wherein the apparatus can serve for forming the laser beams which originate from a laser diode bar with a plurality of emitters arranged adjacent to each other in a second direction or a stack of laser diode bars, each with a plurality of emitters arranged adjacent to each other in the second direction, and can form the laser radiation such that the laser radiation can enter an optical fiber, comprising: - a single component for realising the coupling in the optical fiber; - first lens means for deflection and/or imaging or collimation of the laser radiation with respect to a first direction, wherein the first lens means are formed by refractive structures in a first area of the component, wherein the first area can serve as an inlet area for the laser radiation, wherein the first lens means comprise at least one first cylindrical lens which is configured such that it can image the laser beams of the laser diode bar or of the stack of laser diode bars on the inlet area of an optical fiber with respect to the first direction, and - second lens means for deflection and/or imaging or collimation of the laser radiation with respect to the second direction, wherein the second lens means are formed from refractive structures in a second area of the component, wherein the second area is opposite the first area and can serve as an outlet area for the laser radiation, wherein the second lens means are formed as an array of second cylindrical lenses, and wherein at least some of the second cylindrical lenses of the array of second cylindrical lenses are configured such that they can image the laser beams of the laser diode bar or of the stack of laser diode bars on the inlet area of an optical fiber with respect to the second direction, - wherein the first and second lens means are configured such that the first and the second lens means can effect imaging of the laser radiation on the inlet area of exactly one optical fiber, characterised in that at least some of the second cylindrical lenses of the array of second cylindrical lenses are asymmetric, and can therefore deflect outer laser beams of the laser beams of the laser diode bar or of the stack of laser diode bars to a greater extent than inner laser beams of the laser diode bar or of the stack of laser diode bars with respect to the second direction, and in that each of the second cylindrical lenses is associated with one emitter and deflects the laser beam originating from the respective emitter with respect to the second direction. - a single component for realising the coupling in the optical fiber; - first lens means for deflection and/or imaging or collimation of the laser radiation with respect to a first direction, wherein the first lens means are formed by refractive structures in a first area of the component, wherein the first area can serve as an inlet area for the laser radiation, wherein the first lens means comprise at least one first cylindrical lens which is configured such that it can image the laser beams of the laser diode bar or of the stack of laser diode bars on the inlet area of an optical fiber with respect to the first direction, and - second lens means for deflection and/or imaging or collimation of the laser radiation with respect to the second direction, wherein the second lens means are formed from refractive structures in a second area of the component, wherein the second area is opposite the first area and can serve as an outlet area for the laser radiation, wherein the second lens means are formed as an array of second cylindrical lenses, and wherein at least some of the second cylindrical lenses of the array of second cylindrical lenses are configured such that they can image the laser beams of the laser diode bar or of the stack of laser diode bars on the inlet area of an optical fiber with respect to the second direction, - wherein the first and second lens means are configured such that the first and the second lens means can effect imaging of the laser radiation on the inlet area of exactly one optical fiber,