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Low-loss c-axis oriented Zn0.72Mg0.28O nonlinear planar optical waveguides on silicon

2021-04-29

 

Author(s): Meng, L (Meng, Lei); Chai, HY (Chai, Hongyu); Lv, ZR (Lv, Zunren); Yang, T (Yang, Tao)

Source: OPTICS EXPRESS Volume: 29 Issue: 7 Pages: 11301-11313 DOI: 10.1364/OE.421932 Published: MAR 29 2021

Abstract: A material platform of highly c-axis oriented Zn1-xMgxO thin films is developed for nonlinear planar waveguides and electro-optic modulators on Si. Mg content in the film greatly influences the quality of film growth. The second harmonic generation measurement and Maker-fringe analysis reveal that the second-order nonlinear susceptibility tensor element chi(33) of the annealed Zn0.72Mg0.28O is approximately 4.2 times larger than that of ZnO. The propagation loss of 633 nm wavelength light in the annealed air/Zn0.72Mg0.28O/SiO2 slab waveguide is 0.68 +/- 0.09 dB/cm and 0.48 +/- 0.03 dB/cm for the TE0 and TM0 modes, respectively. These results suggest the great potential of the c-axis oriented Zn0.72Mg0.28O nonlinear planar waveguides for applications in on-chip optical interconnects. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Accession Number: WOS:000635208000122

PubMed ID: 33820245

ISSN: 1094-4087

Full Text: https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-7-11301&id=449564



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