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1-GHz-spaced 16-channel arrayed-waveguide grating for a wavelength reference standard in DWDM network systems

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4 Author(s)
K. Takada ; NTT Photonics Labs., Ibaraki, Japan ; M. Abe ; T. Shibata ; K. Okamoto

We fabricated a 1-GHz-spaced 16-channel arrayed-waveguide grating (AWG) by using a new AWG configuration where the path of each arrayed waveguide winds backward and forward across a 4-in diameter wafer without crossing any other waveguides. The ultra-narrow (< 1 GHz) and stable transmission bands of this AWG can be used to construct a wavelength reference standard covering the S, C, and L bands in the dense wavelength-division-multiplexing network systems whose frequency deviation is /spl plusmn/160 MHz.

Published in:

Journal of Lightwave Technology  (Volume:20 ,  Issue: 5 )