IEICE Electronics Express | |
Spatial mode multiplexer/demultiplexer based on tapered hollow waveguide | |
Yasushi Yokota1  Fumio Koyama1  Hamed Dalir1  | |
[1] Photonics Integration System Research Center, Tokyo Institute of Technology | |
关键词: multiplexer/demultiplexer; hollow waveguide; spatial mode; | |
DOI : 10.1587/elex.8.684 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
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【 摘 要 】
References(8)Cited-By(4)A spatial-mode multiplexer/demultiplexer using a Bragg reflector tapered hollow waveguide is proposed. Depending on each spatial mode, vertical radiation takes place at a cut-off condition while the radiation position is dependent on the order of each spatial mode. Modeling of our structure is carried out by using a mode-matching method. The result shows low wavelength dependence and no noticeable polarization dependence while a low insertion loss is expected. Also a tapered hollow waveguide consisting of highly reflective multilayer mirrors with a wafer bonding process is fabricated. Clear vertical radiation could be observed, depending on the order of spatial modes. Our proposed device enables us to integrate surface-normal optical devices such as photo-detectors and VCSELs. The device will be useful for ultra-high capacity optical interconnects using spatial mode multiplexing.
【 授权许可】
Unknown
【 预 览 】
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RO201911300517692ZK.pdf | 589KB | ![]() |