200-GHz spacing, 8ch, high-speed wavelength selective arrayed-waveguide grating using buried PLZT waveguides
200-GHz spacing, 8ch, high-speed wavelength selective arrayed-waveguide grating using buried PLZT waveguides
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DOI：
10.1587/elex.9.712
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发表时间：
2012-04
期刊：
影响因子：
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通讯作者：
H. Asakura;K. Nashimoto;D. Kudzuma;M. Hashimoto;H. Tsuda
中科院分区：
文献类型：
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作者：
H. Asakura;K. Nashimoto;D. Kudzuma;M. Hashimoto;H. Tsuda
使用掩埋 PLZT ((Pb, La)(Zr, Ti)O3) 波导制造波长选择性 AWG（阵列波导光栅）。它有 8 个输出通道，间隔为 200GHz。与之前报道的脊形 PLZT 波导相比，埋入式 PLZT 波导具有更低的传播损耗和更高的光学限制。因此，使用埋入式PLZT波导，可以设计和制造比传统AWG具有更短通道间隔的AWG。 3dB带宽为110GHz，最大控制电压为14V，调谐范围为1600GHz。波长调谐已成功演示，TE（横向电）偏振光的串扰约为 -14dB，TM（横向磁）偏振光的串扰约为 -13dB。
A wavelength selective AWG (arrayed-waveguide grating) was fabricated using buried PLZT ((Pb, La)(Zr, Ti)O3) waveguides. It has 8 output channels with 200GHz spacing. The buried PLZT waveguides have lower propagation loss and higher optical confinement compared to the previously reported ridge PLZT waveguides. Therefore, using buried PLZT waveguides, an AWG with shorter channel spacing than a conventional AWG can be designed and fabricated. The 3-dB bandwidth was 110GHz, the maximum control voltage was 14V, and the tuning range was 1600GHz. Wavelength tuning was successfully demonstrated with a crosstalk of about -14dB for TE (transverse electric) polarized light and -13dB for TM (transverse magnetic) polarized light.