Optical space switch and network with such optical space switches
作者： Takakiyo Nakagami , Tsuyoshi Yamamoto , Hiroyasu Itoh
DOI:
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摘要: An optical space switch includes a polarization controller (2), beam splitter (1), first reflection block (5) and second (8). The has mode mode. maintains the of input light in changes it by 90° quarter wave plate (3) path changing element (4). from is reflected block. During this time, passes through twice. Thus, changed 90°. Further, shifted predetermined distance element. (6) mirror (7). receives splitter, returns thereto. since twice, thereof emitted via output or path.
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