Novel distributed feedback lightwave circuit elements

Dag C. B., Anil M. A., Serpenguzel A.

Conference on Smart Photonic and Optoelectronic Integrated Circuits XVII, San-Francisco, Costa Rica, 11 - 12 February 2015, vol.9366 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 9366
  • Doi Number: 10.1117/12.2084759
  • City: San-Francisco
  • Country: Costa Rica
  • Istanbul Technical University Affiliated: Yes


The devices that are variations of inter-and intracoupled meandering optical waveguides are proposed as the lightwave circuit elements that exhibit distributed feedback. A preliminary transfer matrix method analysis is applied in frequency domain, taking the coupling purely directional and with constant coefficient on geometrically symmetric and anti-symmetric devices. The meandering loop mirror is the building block of all meandering waveguide based lightwave circuit elements. The simplest uncoupled meandering distributed feedback structure exhibits Rabi splitting in the transmittance spectrum. The symmetric and antisymmetric coupled meandering distributed feedback geometries can be utilized as band-pass, Fano, or Lorentzian filters or Rabi splitters. Meandering waveguide distributed feedback structures with a variety of spectral responses can be designed for a variety of lightwave circuit element functions and can be implemented with generality due to the analytic approach taken.