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Simultaneous multi-channel RZ-OOK/DPSK to NRZ-OOK/DPSK format conversion based on integrated delay interferometers and arrayed-waveguide grating

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Abstract

Format conversion is enabling function at the interface of different networks with different optimal modulation formats. Meanwhile, multi-channel signal processing function has its special significance for dense wavelength division multiplexing networks. In this paper, we designed and fabricated a delay interferometer cascaded with an arrayed-waveguide grating based on silicon on insulator. The 4-channel return-to-zero on-off keying (RZ-OOK) to non-return-to-zero on-off keying (NRZ-OOK) and return-to-zero differential phase shift keying (RZ-DPSK) to non-return-to-zero differential phase shift keying (NRZ-DPSK) format conversions at 40 Gbit/s were realized with this integrated device, the output eye diagrams showed a good conversion performance. Thanks to the mature fabrication technology, this device shows great potential for its small size, low power consumption and possibility of monolithic integration.

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Authors and Affiliations

  1. Wuhan National Laboratory for Optoelectronics, School of Optoelectronics Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Lei Xiang, DingShan Gao, BingRong Zou, ShouJin Hu & XinLiang Zhang

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  1. Lei Xiang
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  2. DingShan Gao
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  3. BingRong Zou
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  4. ShouJin Hu
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  5. XinLiang Zhang
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Correspondence to XinLiang Zhang.

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Xiang, L., Gao, D., Zou, B. et al. Simultaneous multi-channel RZ-OOK/DPSK to NRZ-OOK/DPSK format conversion based on integrated delay interferometers and arrayed-waveguide grating. Sci. China Technol. Sci. 56, 558–562 (2013). https://doi.org/10.1007/s11431-012-5124-y

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  • DOI: https://doi.org/10.1007/s11431-012-5124-y

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