A method for mitigating modal noise in laser light from a multimode optical fiber, the method comprising: applying a time-varying mechanical force to a length of a fiber segment of the multimode optical fiber in at least a first direction orthogonal to a fiber axis of the multimode optical fiber within the fiber segment, the fiber segment being embedded and entirely surrounded along its length within an elastic material of an elastic coupler, and the step of applying the time-varying mechanical force comprising applying, by an actuator a time-varying mechanical force to the elastic material such that the mechanical force is damped by the elastic material and the fiber segment vibrates, dithers and/or bends in at least the first direction within the elastic material; wherein the step of applying the time-varying mechanical force to the fiber segment comprises applying two time-varying mechanical forces to the fiber segment in two respective non-parallel directions that are both orthogonal to the fiber axis; while applying, by the actuator, the time-varying mechanical force to the elastic material: generating the laser light by a laser; coupling the laser light to an input end of the multimode optical fiber, wherein applying the time-varying mechanical force induces a time variation on the modal noise of the laser light; and projecting at least a portion of the laser light emitted by an output end of the multimode optical fiber to form an image on a screen, wherein the time variation on the modal noise of the laser light emitted by the output end induces a time variation on a non-uniform luminance region of the formed image, the non-uniform luminance region representing a luminance region that should be constant, the non-uniformity being caused by the modal noise; wherein the step of applying two time-varying mechanical forces to the fiber segment comprises dithering, by the actuator, the fiber segment in each of the two non-parallel directions such that the non-uniformity of the non-uniform luminance region is less perceivable to a viewer of the screen. applying a time-varying mechanical force to a length of a fiber segment of the multimode optical fiber in at least a first direction orthogonal to a fiber axis of the multimode optical fiber within the fiber segment, the fiber segment being embedded and entirely surrounded along its length within an elastic material of an elastic coupler, and the step of applying the time-varying mechanical force comprising applying, by an actuator a time-varying mechanical force to the elastic material such that the mechanical force is damped by the elastic material and the fiber segment vibrates, dithers and/or bends in at least the first direction within the elastic material; wherein the step of applying the time-varying mechanical force to the fiber segment comprises applying two time-varying mechanical forces to the fiber segment in two respective non-parallel directions that are both orthogonal to the fiber axis; while applying, by the actuator, the time-varying mechanical force to the elastic material: generating the laser light by a laser; coupling the laser light to an input end of the multimode optical fiber, wherein applying the time-varying mechanical force induces a time variation on the modal noise of the laser light; and projecting at least a portion of the laser light emitted by an output end of the multimode optical fiber to form an image on a screen, wherein the time variation on the modal noise of the laser light emitted by the output end induces a time variation on a non-uniform luminance region of the formed image, the non-uniform luminance region representing a luminance region that should be constant, the non-uniformity being caused by the modal noise; generating the laser light by a laser; coupling the laser light to an input end of the multimode optical fiber, wherein applying the time-varying mechanical force induces a time variation on the modal noise of the laser light; and projecting at least a portion of the laser light emitted by an output end of the multimode optical fiber to form an image on a screen, wherein the time variation on the modal noise of the laser light emitted by the output end induces a time variation on a non-uniform luminance region of the formed image, the non-uniform luminance region representing a luminance region that should be constant, the non-uniformity being caused by the modal noise; wherein the step of applying two time-varying mechanical forces to the fiber segment comprises dithering, by the actuator, the fiber segment in each of the two non-parallel directions such that the non-uniformity of the non-uniform luminance region is less perceivable to a viewer of the screen.