Abstract
We report here in detail the WDM performance of a wide-angle novel X-junction switch (TSXB) that we developed earlier. At a full branching angle of 1.5°, our new design achieves a bandwidth of 145 nm (1470–1615 nm) at 1.5 dB over which the crosstalk is kept below −18.0 dB. Maintaining the same order of bandwidth in normal X-junctions (NXB) requires a branching angle as narrow as 0.2°. A TSXB is thus suitable for WDM systems, yet comes in a size significantly more wide angle (and hence more compact) than an NXB. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 423–426, 2001.
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