Design and characterization of a mode-splitting Y-junction


Veldhuis, G.J. and Berends, J.H. and Lambeck, P.V. (1996) Design and characterization of a mode-splitting Y-junction. Journal of Lightwave Technology, 14 (7). pp. 1746-1752. ISSN 0733-8724

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Abstract:It will he shown In this paper, that the mode conversion factor (MCF) as defined for Y-junctions, can be profitably applied for the design of three branch junctions for splitting the three lowest-order modes of a channel waveguide. Accordingly, these so-called mode-splitting Ψ-junctions were designed for implementation in PECVD SiON-technology. Propagation calculations point to crosstalk levels well below -20 dB at 10-20 mm junction length. The produced Ψ-junctions show crosstalk of less than -17 dB, mainly originating from the nonhomogeneity of the refractive indexes of the SiON layers
Item Type:Article
Copyright:©1996 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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