Grating-assisted coupler used as a narrow bandwidth channel-dropping filter

A theoretical analysis of a modified grating-assisted coupler involving an additional long period grating in the input channel is presented. We show that the second grating allows for improved performance of the device, especially in terms of spectral selectivity: the presented technique leads to a...

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Veröffentlicht in:	Optical and quantum electronics 2004-11, Vol.36 (14), p.1221-1225
Hauptverfasser:	YESAYAN, Ararat, PICHE, Michel
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Integrated optics. Optical fibers and wave guides Optical and optoelectronic circuits Optical communication systems, multiplexers, and demultiplexers Optical telecommunications Optical waveguides and couplers Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	A theoretical analysis of a modified grating-assisted coupler involving an additional long period grating in the input channel is presented. We show that the second grating allows for improved performance of the device, especially in terms of spectral selectivity: the presented technique leads to a decrease in the spectral bandwidth of the coupler.
ISSN:	0306-8919 1572-817X
DOI:	10.1007/s11082-004-5934-7