Fully integrated and broadband Si-rich silicon nitride wavelength converter based on Bragg scattering intermodal four-wave mixing  

作　　者：VALERIO VITALI THALÍA DOMÍNGUEZ BUCIO HAO LIU JOSÉMANUEL LUQUE GONZÁLEZ FRANCISCO JURADO-ROMERO ALEJANDRO ORTEGA-MOÑUX GLENN CHURCHILL JAMES C.GATES JAMES HILLIER NIKOLAOS KALFAGIANNIS DANIELE MELATI JENS H.SCHMID ILARIA CRISTIANI PAVEL CHEBEN J.GONZALO WANGÜEMERT-PÉREZ ÑIGO MOLINA-FERNÁNDEZ FREDERIC GARDES COSIMO LACAVA PERIKLIS PETROPOULOS 

机构地区：[1]Optoelectronics Research Centre,University of Southampton,Southampton SO171BJ,UK [2]Electrical,Computer and Biomedical Engineering Department,University of Pavia,Pavia 27100,Italy [3]Telecommunication Research Institute(TELMA),Universidad de Málaga,CEI Andalucı´a TECH,E.T.S.I.Telecomunicación,29010 Málaga,Spain [4]School of Science and Technology,Nottingham Trent University,Nottingham NG118NS,UK [5]Department of Electrical Engineering,Eindhoven University of Technology,Eindhoven 5600 MB,The Netherlands [6]Department of Materials Science and Engineering,University of Ioannina,Ioannina 45110,Greece [7]Centre de Nanosciences et de Nanotechnologies,UniversitéParis-Saclay,CNRS,91120 Palaiseau,France [8]Advanced Electronics and Photonics Research Center,National Research Council Canada,Ottawa,Ontario K1A 0R6,Canada

出　　处：《Photonics Research》2024年第3期I0001-I0010,共10页光子学研究(英文版)

基　　金：Engineering and Physical Sciences Research Council(EP/R003076/1,EP/T007303/1,EP/W024772/1);Ministero dell’Universitàe della Ricerca(PRIN(2022H7RR4F))。

摘　　要：Intermodal four-wave mixing(FWM)processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same waveguide.This allows,in principle,to place signals in different spectral regions and satisfy the phase matching condition over considerably larger bandwidths compared to intramodal processes.However,the demonstrations reported so far have shown a limited bandwidth and suffered from the lack of on-chip components designed for broadband manipulation of different modes.We demonstrate here a silicon-rich silicon nitride wavelength converter based on Bragg scattering intermodal FWM,which integrates mode conversion,multiplexing and de-multiplexing functionalities on-chip.The system enables wavelength conversion between pump waves and a signal located in different telecommunication bands(separated by 60 nm)with a 3 dB bandwidth exceeding 70 nm,which represents,to our knowledge,the widest bandwidth ever achieved in an intermodal FWM-based system.

关 键 词：SCATTERING PUMP MODAL 

分 类 号：O43[机械工程—光学工程] TN773[理学—光学]