Light path changing variable light attenuator

本项发明涉及光径改变型可变光衰减器。它包括：通过发送芯线发射光信号的发送光纤；通过接收芯线接收上述发送光纤发射出的光信号的接收光纤；具有阻碍上述发送光纤的发送芯线发射出的光信号到达上述接收光纤的接收芯线上的反射面，且可任意移动，将一部分上述发送光纤发送的光信号传达到接收芯线上，由此将发送光纤发射出的光信号反射到与发送/接收光纤之间的光径毫不相干的路径，因此避免波长对衰减量的影响。 Disclosed is a path-converted variable optical attenuator comprising: a transmitting fiber for launching an optical signal through a transmitting core; a receiving fiber for receiving the optical signal from the transmitting fiber through a receiving core; and a mirror having a reflector for obstructing the optical signal launched from the transmitting core of the transmitting fiber from proceeding into the receiving core of the receiving fiber, and being displaced in a direction allowing a portion of the optical signal of the transmitting fiber into the receiving fiber to attenuate the optical signal. An optical signal launched from the transmitting fiber to the receiving fiber is reflected to a separate path from paths of transmitting/receiving fibers so that attenuation may not vary according to wavelength.