Abstract: The invention relates to a laser system having a laser radiation source, an optical element and a laser-active amplification device with a first side facing a shaped laser beam and an opposite second side. A beam shaping device is disposed between the laser radiation source and the one optical element and serves to create a laser beam that is shaped with regard to an intensity distribution and/or a phase of the laser beam. The optical element steers the shaped laser beam to the amplification device. The amplification device amplifies the shaped laser beam by means of a pump beam and emits said laser beam as amplified shaped laser beam. The shaped and/or amplified laser beam is diagnosed in order to control and/or regulate the beam shaping device by means of a feedback loop. The invention also relates to an optical system and a method for creating the above type of laser beam.

Abstract: A system for optical communication includes at least one light source for transmitting optical signals, at least one optical receiving unit for receiving the optical signals of the at least one light source, at least one mask unit, which is arranged between the optical receiving unit and the at least one light source, and which is designed to be switchable back-and-forth at least in areas between an at least partially optically non-forwarding and at least partially optically forwarding state. An image of at least one light-emitting area of the at least one light source can be imaged onto the at least one mask unit and in the at least partially forwarding state of the at least one mask unit can be conducted to the receiving unit. A method for optical communication is also provided.

Abstract: A system for optical communication includes at least one light source for transmitting optical signals, at least one optical receiving unit for receiving the optical signals of the at least one light source, at least one mask unit, which is arranged between the optical receiving unit and the at least one light source, and which is designed to be switchable back-and-forth at least in areas between an at least partially optically non-forwarding and at least partially optically forwarding state. An image of at least one light-emitting area of the at least one light source can be imaged onto the at least one mask unit and in the at least partially forwarding state of the at least one mask unit can be conducted to the receiving unit. A method for optical communication is also provided.