Title :
Integrated microwave photonic phase-shifters based on colloidal quantum dots-PMMA nanocomposite waveguides
Author :
Ricchiuti, Amelia Lavinia ; Suarez, I. ; Barrera, David ; Rodriguez Canto, P. ; Abargues, R. ; Fernandez-Pousa, C.R. ; Martinez Pastor, Juan P. ; Sales, Salvador
Author_Institution :
Opt. & Quantum Commun. Group, Univ. Politec. de Valencia, Valencia, Spain
Abstract :
In this work we developed new integrated microwave photonic phase shifters on polymer waveguides. A phase shift at 1550 nm can be induced in PMMA waveguide when it is pumped at 1310 nm due to the refractive index changes provoked by heating. Such a shift can be controlled with the length of the waveguide or the frequency of the microwave signal; or it can be enhanced by doping the polymer with colloidal quantum dots (QDs) with absorption at the pumping wavelength. In this way, absorption in the nanocrystals deal that PbS-PMMA waveguides show phase shift up to 13°, while the figure of merit measured in PMMA samples was reduced to 5°. This paper presents the potential of this novel active waveguides for microwave photonic applications.
Keywords :
colloidal crystals; integrated optics; microwave photonics; nanocomposites; nanophotonics; optical phase shifters; optical polymers; optical waveguides; quantum dots; refractive index; colloidal quantum dots; colloidal quantum dots-PMMA nanocomposite waveguides; integrated microwave photonic phase-shifters; nanocrystals; polymer waveguides; refractive index changes; wavelength 1310 nm; wavelength 1550 nm; Absorption; Microwave FET integrated circuits; Microwave integrated circuits; Microwave photonics; Optical waveguides; Refractive index; PMMA; PbS; phase shifter; planar waveguides;
Conference_Titel :
Transparent Optical Networks (ICTON), 2013 15th International Conference on
Conference_Location :
Cartagena
DOI :
10.1109/ICTON.2013.6603052
