Optical all-pass filters for phase response design with applications for dispersion compensation Academic Article uri icon


  • Lossless all-pass optical filters are introduced, which can approximate any desired phase response while maintaining a constant, unity amplitude response. Architectures using cascade and lattice structures based on ring resonators and cavities defined by reflectors are discussed. Two applications are presented: 1) for fiber dispersion compensation and 2) for compensation of the nonlinear phase response of narrow bandpass optical filters such as thin-film or Bragg grating filters. All orders of dispersion can be compensated in principle, and the filters are periodic so multiple channels can be compensated with a single device. The architectures are very compact compared to alternatives such as chirped Bragg gratings.

published proceedings

  • IEEE Photonics Technology Letters

altmetric score

  • 9

author list (cited authors)

  • Madsen, C. K., & Lenz, G.

citation count

  • 194

complete list of authors

  • Madsen, CK||Lenz, G

publication date

  • July 1998