Graphene-assisted critically-coupled optical ring modulator
Anno: 2012
Autori: Midrio M., Boscolo S., Moresco M., Romagnoli M., De Angelis C., Locatelli A., Capobianco A.D.
Affiliazione autori: Dipartimento di Ingegneria Elettrica Gestionale e Meccanica, Università degli Studi di Udine, 33100 Udine, Italy; PhotonIC Corporation, 5800 Uplander Way, Los Angeles, CA 90230, USA; Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA; Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Brescia, 25123 Brescia, Italy; Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Padova, 35131 Padova, Italy
Abstract: Graphene\’s conductivity at optical frequencies can be varied upon injection of carriers. In the present paper, this effect is used to modulate losses of an optical wave traveling inside a ring cavity. This way an optical modulator based on the critical-coupling concept first introduced by Yariv can be realized. Through numerical simulations, we show that a modulator featuring a bandwidth as large as 100 GHz can be designed with switching energy in the order of few fJ per bit. Also, we show that operations with driving voltages below 1.2 volt could be obtained, thus making the proposed modulator compatible with requirements of low-voltage CMOS technology. (C) 2012 Optical Society of America
Giornale/Rivista: OPTICS EXPRESS
Volume: 20 (21) Da Pagina: 23144 A: 23155
Parole chiavi: Graphene photonicsDOI: 10.1364/OE.20.023144Citazioni: 68dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-04Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
