Optically controlled contradirectional coupler

Author

Coriasso, C. ; Campi, D. ; Faustini, L. ; Stano, A. ; Cacciatore, C.

Author_Institution

CSELT, Torino, Italy

Volume

35

Issue

3

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

298

Lastpage

305

Abstract

A multiple-quantum-well optically controlled contradirectional coupler has been realized following the design criteria discussed here and elucidated by the simulations. Our room-temperature experiments show a power-dependent contradirectional coupling condition, allowing optically controlled switching between two output channels with control energies on the order of 1 pJ, and at a wavelength around 1.55 μm. The device is treated theoretically by a coupled mode analysis in order to compute the linear and nonlinear transmission spectra at the two output ports. The effects induced by the propagation of intense control beams are modeled using a nonlinear two-dimensional beam propagation method

Keywords

coupled mode analysis; optical communication equipment; optical design techniques; optical directional couplers; semiconductor quantum wells; 1 pJ; 1.55 mum; control beams; control energies; coupled mode analysis; design criteria; linear transmission spectra; multiple-quantum-well optically controlled contradirectional coupler; nonlinear transmission spectra; optically controlled contradirectional coupler; output channels; output ports; power-dependent contradirectional coupling condition; room-temperature experiments; two-dimensional beam propagation method; Nonlinear optical devices; Nonlinear optics; Optical control; Optical coupling; Optical crosstalk; Optical pumping; Optical refraction; Optical variables control; Optical waveguides; Quantum well devices;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.748834

Filename

748834