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Proceedings Paper

Fiber Bragg gratings and chromatic dispersion
Author(s): Richard L. Lachance; Yves Painchaud; Aidan Doyle
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Paper Abstract

Since the late 1990s, steady advances in wavelength division multiplexing (WDM) technology have provided better ways to increase the capacity of optical networks. Three significant trends become evident in long-haul transmission system, namely the continual increase in the number of dense WDM channels, the increase in data rates from 2.5 Gb/s to today's 10 Gb/s, to tomorrow's 40 Gb/s, and finally longer distances between electrical regeneration sites. These trends towards an increased optical network capacity are now clashing with chromatic dispersion. This paper will discuss the application of high-end FBGs to telecommunication systems, focusing on their performances with respect to chromatic dispersion. Two types of components will be discussed: low-dispersion FBG WDM filters and FBG dispersion compensators. High-quality ultra-low dispersion FBGs have been fabricated successfully and their key attributes will be discussed. Advanced applications of FBGs for chromatic dispersion compensation, such as broadband multi-channel dispersion and slope compensation, will be covered. In particular, FBG dispersion slope compensators can be used in conjunction with Dispersion Compensating Fiber (DCF) to fully manage the dispersion over a large number of WDM channels. The need for tunable dispersion compensation at 40 Gb/s transmission rates will be discussed. Experimental results will also be presented.

Paper Details

Date Published: 17 February 2003
PDF: 8 pages
Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); doi: 10.1117/12.473966
Show Author Affiliations
Richard L. Lachance, TeraXion Inc. (Canada)
Yves Painchaud, TeraXion Inc. (Canada)
Aidan Doyle, TeraXion Inc. (Canada)


Published in SPIE Proceedings Vol. 4833:
Applications of Photonic Technology 5

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