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Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration IZM
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PublicationHybrid polymer/silica vertical coupler switch with < -32 dB polarisation-independent crosstalk( 2001)
;Keil, N. ;Yao, H.H. ;Zawadzki, C. ;Lösch, K. ;Satzke, K. ;Wischmann, W. ;Wirth, J. von ;Schneider, J. ;Bauer, J.Bauer, M.A modified hybrid polymer/silica 1x2 vertical coupler switch (VCS) with a polymer gap layer and a refractive index contrast of 0.008 has been designed, fabricated and characterised. The VCS exhibits low loss, low crosstalk, low switching power, and polarisation insensitivity. Using the 1x2 VCS as a building block, a 1x8 VCS matrix has been implemented. -
PublicationHybrid polymer/silica thermo-optic vertical coupler switches( 2001)
;Keil, N. ;Yao, H.H. ;Zawadzki, C. ;Lösch, K. ;Satzke, K. ;Wischmann, W. ;Wirth, J.V. ;Schneider, J. ;Bauer, J.Bauer, M.Thermo-optic 1 * 2 vertical coupler switches (VCSs) using a hybrid polymer/silica integration technology were designed using a finite element method and a coupled mode method for different refractive index contrasts. The multilayer structures were optimized by thermal analysis. Based on these designs and simulations, hybrid polymer/silica thermooptic 1 * 2 VCSs exhibiting low insertion loss, low crosstalk, low switching power and polarisation independence were demonstrated. Based on this building block, a 1 * 8 VCS has been fabricated. -
PublicationThermo-optic vertical coupler switches using hybrid polymer/silica integration technology( 2000)
;Keil, N. ;Weinert, C. ;Wirges, W. ;Yao, H.H. ;Yilmaz, S. ;Zawadzki, C. ;Schneider, J. ;Bauer, J. ;Bauer, M. ;Lösch, K. ;Satzke, K. ;Wischmann, W.Wirth, J. vonA hybrid integration concept has been investigated which combines the advantages of ultra-low loss silica waveguides and low power consumption polymer thermo-optic switches. A 1*2 vertical coupler type switch (VCS) has been realised. Preliminary results exhibited a crosstalk of <-23 dB, an insertion loss of 3.5 dB (at 1550 nm) and a switching power of <80 mW.