向您推薦《液晶與顯示》期刊
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《液晶與顯示》編輯部 國(guó)際標(biāo)準(zhǔn)刊號(hào):ISSN1007-2780
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Integrated vector sum m icrowave photonic phase shifter based on asymmetric Mach-Zendner structure in SOI
XIAO Yong-chuan,QU Peng-fei,Zh OU Jing-ran,LIU Cai-xia,DONGWei,Ch ENWei-you
(State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin UniVersity,Changchun 130012,China)
An integrated vector sum microwave photonic phase shifter(MWPPS)based on the asymmetric Mach-Zendner structure in Silicon on Insulator(SOI)rib waveguideswas designed and fabricated for the first time.A fixed true time delay of47 pswas achieved by a length difference of3 983μm between the two asymmetric arms.Then two thermo-optical Variable Optical Attenuators(VOAs)were integrated in the two arms respectively to tune the optical power individually.The phase shift ranging from 0°to near 180°for a 10 Gh x microwave signal has been achieved by the RIvariation of0~6×10-3in VOAs.The device which has a very compact sixe could be easily integrated in silicon optoelectronic chips and expected to be widely used in Optically Controlled Phased Array Radars(OCPARs).
phase shifter;microwave photonics;Silicon on Insulator(SOI)
book=418,ebook=102
1674-2915(2011)04-0418-05