Volume 4 Issue 4
Aug.  2011
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XIAO Yong-chuan, QU Peng-fei, ZHOU Jing-ran, LIU Cai-xia, DONG Wei, CHEN Wei-you. Integrated vector sum microwave photonic phase shifter based on asymmetric Mach-Zendner structure in SOI[J]. Chinese Optics, 2011, 4(4): 418-422.
Citation: XIAO Yong-chuan, QU Peng-fei, ZHOU Jing-ran, LIU Cai-xia, DONG Wei, CHEN Wei-you. Integrated vector sum microwave photonic phase shifter based on asymmetric Mach-Zendner structure in SOI[J]. Chinese Optics, 2011, 4(4): 418-422.

Integrated vector sum microwave photonic phase shifter based on asymmetric Mach-Zendner structure in SOI

  • Received Date: 11 Apr 2011
  • Rev Recd Date: 13 Jul 2011
  • Publish Date: 25 Aug 2011
  • An integrated vector sum microwave photonic phase shifter(MWPPS) based on the asymmetric Mach-Zendner structure in Silicon on Insulator(SOI) rib waveguides was designed and fabricated for the first time. A fixed true time delay of 47 ps was achieved by a length difference of 3 983 m 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 GHz microwave signal has been achieved by the RI variation of 0.610 in VOAs. The device which has a very compact size could be easily integrated in silicon optoelectronic chips and expected to be widely used in Optically Controlled Phased Array Radars(OCPARs).

     

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