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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 33,
  • Issue 11,
  • pp. 2279-2285
  • (2015)

Compact Dense Wavelength-Division (De)multiplexer Utilizing a Bidirectional Arrayed-Waveguide Grating Integrated With a Mach–Zehnder Interferometer

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Abstract

A compact wavelength-division (de)multiplexer is proposed and demonstrated experimentally to achieve doubled channel number and halved channel spacing by utilizing a bidirectional arrayed-waveguide grating integrated with an Mach–Zehnder interferometer optical interleaver. As an example, an 18-channel wavelength-division (de)multiplexer with a channel spacing of 200 GHz is designed and fabricated. The measured excess loss is about 8 dB and the channel crosstalk is −15 ∼ −18 dB. The footprint of this fabricated (de)multiplexer is about 520 μm × 190 μm.

© 2015 IEEE

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