We propose a new mode adapter which allows more efficient launching of the optical power selectively in the fundamental mode of a multimode waveguide. Theoretical and experimental results confirm that such a mode adapter increases the performances in terms of coupling efficiency, coupling tolerances and transmitted power with respect to previously proposed solutions. Proof of principle of device operation is obtained with a simple Coupled Mode Theory model. Experimental results are obtained at a wavelength of 840 nm in Lithium Niobate Soft Proton Exchanged waveguides and agree very well with theoretical predictions.
High performance mode adapters based on segmented SPE:LiNbO3 waveguides / D. Castaldini; P. Bassi; P. Aschieri; S. Tascu; M. De Micheli; P. Baldi. - In: OPTICS EXPRESS. - ISSN 1094-4087. - ELETTRONICO. - 17:(2009), pp. 17868-17873. [10.1364/OE.17.017868]
High performance mode adapters based on segmented SPE:LiNbO3 waveguides
BASSI, PAOLO;
2009
Abstract
We propose a new mode adapter which allows more efficient launching of the optical power selectively in the fundamental mode of a multimode waveguide. Theoretical and experimental results confirm that such a mode adapter increases the performances in terms of coupling efficiency, coupling tolerances and transmitted power with respect to previously proposed solutions. Proof of principle of device operation is obtained with a simple Coupled Mode Theory model. Experimental results are obtained at a wavelength of 840 nm in Lithium Niobate Soft Proton Exchanged waveguides and agree very well with theoretical predictions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.