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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 3 — Feb. 1, 2011
  • pp: 322–324

Optical 60 ° hybrid for demodulating six-level DPSK signal

Seok-Hwan Jeong and Ken Morito  »View Author Affiliations

Optics Letters, Vol. 36, Issue 3, pp. 322-324 (2011)

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We propose and demonstrate an optical 60 ° hybrid for demodulating optical signals with six-level DPSK modulation format. The proposed device consisting of a paired-interference 2 6 MMI coupler, phase shifters, and 2 2 MMI couplers with an asymmetric splitting ratio of 72 28 exhibited hexagonal phase response over a C-band range.

© 2011 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.3120) Integrated optics : Integrated optics devices
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: September 9, 2010
Revised Manuscript: November 15, 2010
Manuscript Accepted: December 22, 2010
Published: January 21, 2011

Seok-Hwan Jeong and Ken Morito, "Optical 60° hybrid for demodulating six-level DPSK signal," Opt. Lett. 36, 322-324 (2011)

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