Science and Engineer Importance to Singapore

Singapore has boosted its water supply through water-recycling and also increased its land area by reclaiming land, all feats accomplished by engineers. And engineering will continue to be important for Singapore's future, as the country works towards becoming a smart nation and overcoming its lack of resources
Prime Minister Lee Hsien Loong
(50th anniversary celebration of the IES)

Thursday, December 13, 2012

Characteristics of suspended-core fiber interferometer: Modal analysis

Authors
Jun Long Lim, et al.
Publication date
2012/12/13
Conference
Photonics Global Conference (PGC), 2012
Pages
1-3
Publisher
IEEE
Abstract
Suspended-core fiber (SCF) represents a promising class of microstructured optical fibers for sensing applications. In this work, we present a thorough modal analysis of the SCF based modal interferometer which is constructed by splicing 50 mm of SCF to single mode fiber at both ends. The measured transmission spectrum exhibits three-beam interference-like spectrum. In the modal analysis, we investigate the intermodal coupling between the fundamental and higher-order modes, as well as the coupling between the orthogonal polarizations in the fundamental modes. In comparison with the typical two-mode interferences in photonic crystal fiber interferometers, the measured spectrum of SCF interferometer has distinctively sharper spectrum for high resolution and high dynamic range application.
 

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