A scheme for beam combination at any angles employing a specially designed multilayer grating is proposed. Such a grating is able to convert noncoaxial laser beams to coaxial ones, and the combined beams are able to o...A scheme for beam combination at any angles employing a specially designed multilayer grating is proposed. Such a grating is able to convert noncoaxial laser beams to coaxial ones, and the combined beams are able to output along the normal line of the grating. The intensity and the phase structure of combined beams call also be controlled. The experiments are carried out by loading all encoded grating on a liquid-crystal spatial light modu- lator. The results agree well with the simulations. This method of beam combination with a multilayer grating serw-s to simplify the complexity of beam combination.展开更多
基金supported by the National Basic Research Program of China(973 Program)(No.2014CB340002)the Graduate Technological Innovation Project of Beijing Institute of Technology(No.2017CX10003)
文摘A scheme for beam combination at any angles employing a specially designed multilayer grating is proposed. Such a grating is able to convert noncoaxial laser beams to coaxial ones, and the combined beams are able to output along the normal line of the grating. The intensity and the phase structure of combined beams call also be controlled. The experiments are carried out by loading all encoded grating on a liquid-crystal spatial light modu- lator. The results agree well with the simulations. This method of beam combination with a multilayer grating serw-s to simplify the complexity of beam combination.
