Diatomic coupled-resonator optical waveguide

Chremmos, I; Schwelb, O

dc.contributor.author	Chremmos, I	en
dc.contributor.author	Schwelb, O	en
dc.date.accessioned	2014-03-01T01:33:09Z
dc.date.available	2014-03-01T01:33:09Z
dc.date.issued	2010	en
dc.identifier.issn	0740-3224	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20349
dc.subject	Coupled Resonator Optical Waveguide	en
dc.subject.classification	Optics	en
dc.subject.other	Analytical expressions	en
dc.subject.other	Band edge	en
dc.subject.other	Coupled-resonator optical waveguides	en
dc.subject.other	Device performance	en
dc.subject.other	Direct coupled	en
dc.subject.other	Dispersion slopes	en
dc.subject.other	Extinction ratios	en
dc.subject.other	Micro resonators	en
dc.subject.other	Numerical simulation	en
dc.subject.other	Optical length	en
dc.subject.other	Parameter perturbation	en
dc.subject.other	Pass bands	en
dc.subject.other	Resonator coupling	en
dc.subject.other	Resonator parameters	en
dc.subject.other	Stop-bands	en
dc.subject.other	Switching characteristics	en
dc.subject.other	Unit cells	en
dc.subject.other	Group delay	en
dc.subject.other	Optical waveguides	en
dc.subject.other	Waveguides	en
dc.subject.other	Resonators	en
dc.title	Diatomic coupled-resonator optical waveguide	en
heal.type	journalArticle	en
heal.identifier.primary	10.1364/JOSAB.27.001242	en
heal.identifier.secondary	http://dx.doi.org/10.1364/JOSAB.27.001242	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	What we believe to be a new optical waveguide is introduced consisting of direct coupled diatomic microresonators, we call the diatomic coupled-resonator optical waveguide (CROW), where the inter-resonator coupling and/or the optical length of adjacent resonators alternate so that the unit cell comprises two resonators. We investigate this device analytically and numerically to find new transmission, group delay, dispersion, and switching characteristics, including a subsidiary stop band within the passband, a result of the alternating resonator parameters, whose width and extinction ratio are directly related to the parameter perturbation, displaying the signature characteristics associated with a finite Bragg grating. Analytical expressions are derived for the band-edge frequencies and the subsidiary stop band width, and numerical simulations illustrate the extent of versatility of the diatomic CROW design, including dispersion slope manipulation. The use of a simple matching structure terminating the diatomic CROW is found to significantly improve the device performance. The sensitivity of the diatomic CROW to the resonator loss is investigated and fabrication issues are also addressed. (C) 2010 Optical Society of America	en
heal.publisher	OPTICAL SOC AMER	en
heal.journalName	Journal of the Optical Society of America B: Optical Physics	en
dc.identifier.doi	10.1364/JOSAB.27.001242	en
dc.identifier.isi	ISI:000278433500014	en
dc.identifier.volume	27	en
dc.identifier.issue	6	en
dc.identifier.spage	1242	en
dc.identifier.epage	1251	en