Compact 1X4 photoswitch

The utility model provides a compact 1X4 photoswitch, including the fiber array of 1 input optic fibre with 4 output optical fiber array one -tenth, the fixed lens array that 5 lens composition formedthat has who is used for focus that is provided with in fiber array one side, every lens one -to -one sets up the one side at input optic fibre and output optical fibre, one side that lens array keptaway from fiber array is provided with 2 first prisms that can change the light path that can move about from top to bottom, and the fixed right angle prism of turning back that is equipped with in one side of lens array is kept away from to first prism, and the hypotenuse that the prism was turned back at the right angle is close to first prism. The utility model discloses simple structure is compact, the integrated encapsulation of being convenient for, and can reduce the optical loss. 本实用新型提供了种紧凑型1X4光开关，包括1根输入光纤和4根输出光纤组成的光纤阵列，所述光纤阵列侧固定设置有用于聚焦的具有5个透镜组合形成的透镜阵列，每个透镜对应设置在输入光纤和输出光纤的侧；所述透镜阵列远离光纤阵列的侧设置有2个可上下活动的能改变光路的第棱镜，第