Optical and Quantum Electronics

, Volume 35, Issue 8, pp 783–790 | Cite as

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

  • S. Lu
  • W.H. Wong
  • E.Y.B. Pun
  • Y. Yan
  • D. Wang
  • D. Yi
  • G. Jin

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.

aberration theory arrayed waveguide grating (AWG) flat-field stigmatic point 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • S. Lu
    • 1
  • W.H. Wong
    • 1
  • E.Y.B. Pun
    • 1
  • Y. Yan
    • 2
  • D. Wang
    • 2
  • D. Yi
    • 2
  • G. Jin
    • 2
  1. 1.Department of Electronic Engineering, Optoelectronics Research CenterCity University of Hong KongKowloonHong Kong
  2. 2.Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and InstrumentsTsinghua UniversityBeijingP.R. China

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