Title :
Optical switch based on microring resonators and phase change materials
Author :
Rude, M. ; Pello, Josselin ; Simpson, R.E. ; van der Tol, J.J.G.M. ; Pruneri, V.
Author_Institution :
ICFO-Inst. de Ciences Fotoniques, Castelldefels, Spain
Abstract :
By exploiting the high contrast in the optical properties of the phase change material Ge2Sb2Te5 between its amorphous and its crystalline stable phases (ncryst-namor=2.5 and kcryst-kamor=1 at 1.55 μm) a thin film (20 nm) of this material deposited on top of a microring resonator can be used to modify its losses and effective refractive index, thus changing the position and shape of the resonances in the transmission spectrum.
Keywords :
amorphous semiconductors; antimony compounds; germanium compounds; infrared spectra; micromechanical resonators; optical losses; optical switches; phase change materials; refractive index; semiconductor thin films; Ge2Sb2Te5; amorphous phase; crystalline stable phase; effective refractive index; losses; microring resonators; optical properties; optical switch; phase change materials; size 20 nm; thin film; transmission spectrum; wavelength 1.55 mum; Optical films; Optical imaging; Optical pulses; Optical refraction; Optical resonators; Optical switches; Optical variables control;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6801279
