Optical and Quantum Electronics

, Volume 35, Issue 8, pp 783–790

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
Article

DOI: 10.1023/A:1024136228663

Cite this article as:
Lu, S., Wong, W., Pun, E. et al. Optical and Quantum Electronics (2003) 35: 783. doi:10.1023/A:1024136228663

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 theoryarrayed waveguide grating (AWG)flat-fieldstigmatic point

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