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Integrated 40- \lambda 1 ,\times, 2 Wavelength Selective Switch Without Waveguide Crossings

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4 Author(s)
Ikuma, Y. ; Sch. of Integrated Design Eng., Keio Univ., Yokohama, Japan ; Mizuno, T. ; Takahashi, H. ; Tsuda, H.

A compact integrated 1×2 wavelength-selective switch (WSS) is demonstrated for which the structure is designed such that the WSS has no waveguide crossings. By employing a loopback configuration, only one arrayed-waveguide grating is needed in the WSS. The channel spacing is 100 GHz and the number of channels is 40. The measured transmission loss of the selected wavelength was <; 8.1dB, and the average crosstalk from two output ports were 23.0 and 40.7 dB.

Published in:

Photonics Technology Letters, IEEE  (Volume:25 ,  Issue: 6 )