A cyclic arrayed-waveguide-grating-based fiber-optic sensor interrogation system

Published 2006

Pawel Niewczas University of Strathclyde

DOI: 10.1109/lpt.2006.881651

Abstract:

In this letter, we discuss the use of cyclic arrayed waveguide gratings in the construction of a multiplexed fiber-optic sensor system. The basic components are described and their role in interrogating sensors is discussed. The letter concludes with a proposed design for an expansive, low cost, highly maintainable system...

Excerpt:

There are a number of advantages to this approach compared to other sensor interrogation methods. If a solid state optical switch is used (e.g., Crystalatch Switch, Agiltron Inc.,Woburn, MA 01801 USA), then the system requires no moving parts, increasing its reliability...

A Novel Protection Scheme for WDM Passive Optical Networks

Published 2006

Zhaowen Xu Institute for Inforcomm Research, A*STAR

DOI: 10.1109/ecoc.2006.4801344

Abstract:

Introduction Wavelength division multiplexed passive optical network (WDM-PON) can provide large transmission capacity and is an attractive implementation for future broadband access. With the rapid increase of transmission capacity of access networks, survivability becomes significant since any failure may disrupt a large amount of transmission data. Some protection schemes have been presented for WDM- PON [1-5]. In [4], a star-ring protection architecture is presented which extra protection resources are provided within one WDM-PON. In [5], a self protection architecture...

Excerpt:

The optical switch in our experiment was a commercial Agiltron Nano Second optical switch with 1.2 dB insertion loss and 23 dB crosstalk...