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Design of flat-field arrayed waveguide grating with three stigmatic points

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Abstract

A new-type flat-field arrayed waveguide grating (AWG), with the focal signals of all wavelengths of operation focusing along a straight line, has been designed. The work bases on the aberration theory of AWG, in which the restraints imposed on the conventional Rowland-type AWG have been released. In the design of flat-field AWG, three stigmatic points restrain three dominant geometry parameters: geometry of star couplers, ports distribution of phased-array, and length increment between adjacent paths. An eight-channel 200-GHz spacing flat-field AWG has been designed and simulated. As stigmatic points introduced, the aberration of this device is much lower than that of the Rowland-type AWG.

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Authors and Affiliations

  1. Department of Electronic Engineering, Optoelectronics Research Center, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong

    S. Lu, W.H. Wong & E.Y.B. Pun

  2. Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, P.R. China

    Y. Yan, D. Wang, D. Yi & G. Jin

Authors
  1. S. Lu
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  2. W.H. Wong
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  3. E.Y.B. Pun
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  4. Y. Yan
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  5. D. Wang
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  6. D. Yi
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  7. G. Jin
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Corresponding author

Correspondence to S. Lu.

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Lu, S., Wong, W., Pun, E. et al. Design of flat-field arrayed waveguide grating with three stigmatic points. Optical and Quantum Electronics 35, 783–790 (2003). https://doi.org/10.1023/A:1024136228663

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  • DOI: https://doi.org/10.1023/A:1024136228663

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