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.
| Original language | English |
|---|---|
| Pages (from-to) | 783-790 |
| Journal | Optical and Quantum Electronics |
| Volume | 35 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Jun 2003 |
Research Keywords
- Aberration theory
- Arrayed waveguide grating (AWG)
- Flat-field
- Stigmatic point
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