A device for transmitting electro-magnetic radiation between at least two separate optical fibers, comprising: - a first optical fiber and a second optical fiber, wherein said second optical fiber is rotatable; - a first optical arrangement communicating with the distal end of said first optical fiber and the proximal end of said second optical fiber, said first optical arrangement comprising: -- a first collimating lens associated with said distal end of said first optical fiber, -- a third optical fiber, -- a second collimating lens associated with a proximal end of said third optical fiber, -- a connector ferrule in which the distal end of said third optical fiber adjacent to said second fiber is inserted, -- a sleeve inside which said connector ferrule is positioned; - a second arrangement configured to control the position of said first optical arrangement to align longitudinal axes of said first collimating lens and said second collimating lens, said second arrangement comprising: -- a tubular structure to which said second collimating lens is attached and surrounding said second collimating lens, -- a housing surrounding said first optical arrangement and said second arrangement and to which said tubular structure is connected via a bearing; and - at least one third arrangement adapted to rotate said second optical fiber at a rate that is greater than 10 revolutions per second, said third arrangement comprising: -- a rotational motor, wherein said motor rotates said tubular structure and thereby said second collimating lens, wherein the numerical product of the focal length of at least one of said first and said second collimating lenses and the numerical aperture of a respective at least one of said first and said second optical fibers is between approximately 100 μm and 1000 μm. - a first optical fiber and a second optical fiber, wherein said second optical fiber is rotatable; - a first optical arrangement communicating with the distal end of said first optical fiber and the proximal end of said second optical fiber, said first optical arrangement comprising: -- a first collimating lens associated with said distal end of said first optical fiber, -- a third optical fiber, -- a second collimating lens associated with a proximal end of said third optical fiber, -- a connector ferrule in which the distal end of said third optical fiber adjacent to said second fiber is inserted, -- a sleeve inside which said connector ferrule is positioned; -- a first collimating lens associated with said distal end of said first optical fiber, -- a third optical fiber, -- a second collimating lens associated with a proximal end of said third optical fiber, -- a connector ferrule in which the distal end of said third optical fiber adjacent to said second fiber is inserted, -- a sleeve inside which said connector ferrule is positioned; - a second arrangement configured to control the position of said first optical arrangement to align longitudinal axes of said first collimating lens and said second collimating lens, said second arrangement comprising: -- a tubular structure to which said second collimating lens is attached and surrounding said second collimating lens, -- a housing surrounding said first optical arrangement and said second arrangement and to which said tubular structure is connected via a bearing; and -- a tubular structure to which said second collimating lens is attached and surrounding said second collimating lens, -- a housing surrounding said first optical arrangement and said second arrangement and to which said tubular structure is connected via a bearing; and - at least one third arrangement adapted to rotate said second optical fiber at a rate that is greater than 10 revolutions per second, said third arrangement comprising: -- a rotational motor, wherein said motor rotates said tubular structure and thereby said second collimating lens, wherein the numerical product of the focal length of at least one of said first and said second collimating lenses and the numerical aperture of a respective at least one of said first and said second optical fibers is between approximately 100 μm and 1000 μm. -- a rotational motor, wherein said motor rotates said tubular structure and thereby said second collimating lens, wherein the numerical product of the focal length of at least one of said first and said second collimating lenses and the numerical aperture of a respective at least one of said first and said second optical fibers is between approximately 100 μm and 1000 μm.