Abstract

With the goal of reducing the number of operations required for digital backward-propagation used for fiber impairment compensation, wavelets-based filtering in digital backward-propagation is presented. The wavelets-based design relies on signal decomposition using time-limited functions and hence is more compatible with the dispersion operator, which is also time-limited. This is in comparison with inverse-Fourier filter design which by definition is not time-limited due to the use of harmonic functions for signal decomposition. Artificial, after-the-fact windowing may be employed in this case; however only a limited amount of saving in number of operations is achieved, compared to the wavelets-base filter design. Wavelets-based filter design procedure and numerical simulations which validate this approach are presented in this paper.

Document Type

Patent

Patent Number

US 8,326,159 B2

Application Serial Number

12/727,532

Issue Date

12-4-2012

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

College of Optics and Photonics

Department

CREOL

Allowance Date

7-25-2010

Filing Date

3-19-2010

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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