Proposal of waveguide-type optical circuit for recognition of optical QPSK coded labels in photonic router

@article{Makimoto2008ProposalOW,
  title={Proposal of waveguide-type optical circuit for recognition of optical QPSK coded labels in photonic router},
  author={Yoshihiro Makimoto and Hitoshi Hiura and Nobuo Goto and S.-i. Yanagiya},
  journal={OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology},
  year={2008},
  pages={1-2}
}
In photonic label routing networks, optical recognition of optical labels is one of the key functions. We propose a passive waveguide- device for recognition of QPSK labels. The function is confirmed with BPM simulation.