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Cyclic-Frequency Router With Improved Performance Based on Arrayed-Waveguide Grating

Cyclic-Frequency Router With Improved Performance Based on Arrayed-Waveguide Grating,10.1109/JLT.2009.2022415,IEEE/OSA Journal of Lightwave Technology

Cyclic-Frequency Router With Improved Performance Based on Arrayed-Waveguide Grating   (Citations: 2)
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We have developed an NxN cyclic-frequency router with improved performance by employing two types of modified configuration; a uniform-loss and cyclic-frequency (ULCF) arrayed-waveguide grating (AWG) and an interconnected multiple AWG. We have demonstrated a compact 50-GHz-spacing 64x64 ULCF-AWG router with low and uniform insertion losses of 5.4-6.8 dB and frequency deviations from the grid of less than plusmn8 GHz. We have also demonstrated a 100-GHz-spacing 8x8 interconnected multiple-AWG router with a practical configuration, very low and uniform insertion losses of 2.3-3.4 dB, and frequency deviations from the grid of less than plusmn6 GHz. We discuss the suitable or realizable scale N of the two types of routers by comparison with a conventional AWG router in terms of optical and dimensional performance and productivity.
Journal: IEEE/OSA Journal of Lightwave Technology - J LIGHTWAVE TECHNOL , vol. 27, no. 18, pp. 4097-4104, 2009
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    • ...We also note that the photonic integration can reduce considerably the Mux/Demux loss to ~1dB [14], even with large port count up to 64. For the sake of simplicity we consider a general scenario where each EDFA compensates 16 to 18 dB of optical loss, including 6 dB from the AWG insertion loss, 10 dB from the TWC conversion loss and 2 dB due to the Mux/Demux insertion loss, if applicable...
    • ...However, manufacturing constraints limit the AWG size [9,14]...
    • ...Recent progress in integrated AWG modules that suppress greatly the center frequency deviation and crosstalk has been reported in [14]...

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