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5-Channel Polymer/Silica Hybrid Arrayed Waveguide Grating.

Sheng-Rui Zhang1, Yue-Xin Yin2, Zi-Yue Lv1

  • 1Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.

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|March 14, 2020
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Summary
This summary is machine-generated.

A novel 5-channel polymer/silica hybrid arrayed waveguide grating (AWG) was developed for optical communications. This cost-effective device operates across the O-band, showing promising low insertion loss and crosstalk for multi-channel applications.

Keywords:
integrated opticsoptical communication systemsplanar lightwave circuitpolymer optical waveguides

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Area of Science:

  • Photonics and Optical Engineering
  • Materials Science

Background:

  • Arrayed waveguide gratings (AWGs) are crucial for wavelength division multiplexing in optical networks.
  • Existing AWG fabrication methods can be complex and costly.
  • The O-band (1260-1360 nm) is a key spectral region for optical communication systems.

Purpose of the Study:

  • To propose and demonstrate a novel 5-channel polymer/silica hybrid AWG.
  • To achieve fabrication through a simple and low-cost microfabrication process.
  • To validate performance metrics including insertion loss and crosstalk for O-band operation.

Main Methods:

  • Fabrication of a polymer/silica hybrid material structure.
  • Design and implementation of a 5-channel arrayed waveguide grating.
  • Characterization of optical performance, including insertion loss and crosstalk, across the O-band.

Main Results:

  • The proposed AWG covers the entire O-band (1260-1360 nm).
  • Simulated insertion loss is below 4.7 dB, with crosstalk below -28 dB within the 3-dB bandwidth.
  • Experimental fiber-to-fiber insertion loss is below 14.0 dB, and channel crosstalk is less than -13.0 dB.

Conclusions:

  • The developed polymer/silica hybrid AWG offers a cost-effective solution for optical communications.
  • The device exhibits suitable performance for O-band optical communication systems.
  • Potential applications extend to multi-channel sensing systems due to its spectral characteristics.