A sensing application of integrated optical (IO) generalized MachZehnder interferometers (GMZIs) is proposed. GMZIs are multiplearms MachZehnder interferometers (MZIs) and are widely used in optical telecommunications for wavelength-division multiplexing (WDM)and optical switching. In this paper,we showthat GMZIs can be used in order to realize highly sensitive IO refractometers that can be usefully employed in chemical and biochemical sensing applications. These devices, with a suitable design, permit sensitive operation over a wide range of indices without the ambiguities of conventional MZIs. Furthermore, in some applications a direct digital readout is possible.
Generalized Mach Zehnder interferometers for sensing applications
Bernini R;
2004
Abstract
A sensing application of integrated optical (IO) generalized MachZehnder interferometers (GMZIs) is proposed. GMZIs are multiplearms MachZehnder interferometers (MZIs) and are widely used in optical telecommunications for wavelength-division multiplexing (WDM)and optical switching. In this paper,we showthat GMZIs can be used in order to realize highly sensitive IO refractometers that can be usefully employed in chemical and biochemical sensing applications. These devices, with a suitable design, permit sensitive operation over a wide range of indices without the ambiguities of conventional MZIs. Furthermore, in some applications a direct digital readout is possible.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
