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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2499–2502

Design of multilevel amplitude regenerative system

Mariia Sorokina  »View Author Affiliations

Optics Letters, Vol. 39, Issue 8, pp. 2499-2502 (2014)

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We propose a scheme for multilevel (nine or more) amplitude regeneration based on a nonlinear optical loop mirror (NOLM) and demonstrate through numerical modeling its efficiency and cascadability on circular 16-, 64-, and 256-symbol constellations. We show that the amplitude noise is efficiently suppressed. The design is flexible and enables variation of the number of levels and their positioning. The scheme is compatible with phase regenerators. Also, compared to the traditional single-NOLM configuration scheme, new features, such as reduced and sign-varied power-dependent phase shift, are available. The model is simple to implement, as it requires only two couplers in addition to the traditional NOLM, and offers a vast range of optimization parameters.

© 2014 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(230.1150) Optical devices : All-optical devices
(230.4320) Optical devices : Nonlinear optical devices

ToC Category:
Optical Devices

Original Manuscript: February 12, 2014
Manuscript Accepted: March 8, 2014
Published: April 15, 2014

Mariia Sorokina, "Design of multilevel amplitude regenerative system," Opt. Lett. 39, 2499-2502 (2014)

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