ATTENUATOR DEVICE AND OPTICAL SWITCHING DEVICE

摘要

There is provided an attenuator device having a simple structure and capable of selecting output of light of an arbitrary wavelength range from a plurality of output ports. The attenuator device includes: a plurality of output fibers (1-3, 1-5) having an end surface serving as an output port; discarding optical fibers (1-2, 1-4) having an end surface serving as a discarding port and each arranged adjacently to the output optical fiber; a diffraction grating (5) for diffracting the incident light to different directions according to the wavelength; and a micro mirror array (7) for adjusting the output direction of the diffracted light for each of the wavelength ranges output from the diffraction grating (5). The micro mirror array (7) adjusts the output direction of the diffracted light so that a part of the diffracted light is output to the output port and the rest is output to the discarding port.