OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 17, Iss. 7 — Jul. 1, 1999
  • pp: 1248–

General Optical All-Pass Filter Structures for Dispersion Control in WDM Systems

G. Lenz and C. K. Madsen

Journal of Lightwave Technology, Vol. 17, Issue 7, pp. 1248- (1999)


View Full Text Article

Acrobat PDF (207 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

All-pass filters (APF's) are devices that allow phase correction or equalization without introducing any amplitude distortion. An optical implementation of such devices is very attractive since they can be used for dispersion compensation. In contrast to other dispersion control devices, optical APF's can correct any order of dispersion. This can be achieved by careful design of multistage APF's to approximate a target phase profile. However, large dispersion is usually narrow band or requires many filter stages. These performance tradeoffs and the general phase properties of optical APF's are reviewed and clarified in the first part of this paper. In the second part, a general design methodology of optical APF's is introduced. We show that any all-pass structure may be constructed from simple N-port devices (such as directional couplers or Mach-Zehnder interferometers) with N-1 outputs fed back to any of the N-1 inputs. The feedback paths may contain delays or further APF's (recursive design). This set of design rules allows for constructing complex all-pass filters of any number of stages starting with very simple elements. We use this technique to demonstrate a number of optical all-pass structures that may be implemented in planar waveguide or using thin-film filter technology.

[IEEE ]

Citation
G. Lenz and C. K. Madsen, "General Optical All-Pass Filter Structures for Dispersion Control in WDM Systems," J. Lightwave Technol. 17, 1248- (1999)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-17-7-1248

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited