GaAs-based polarization modulators for microwave photonic applications

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• 作者：Yu Xiang ; Shilong Pan
• 关键词：GaAs ; polarization modulator (PolM) ; optoelectronic oscillator (OEO) ; frequency conversion ; microwave photonics filter (MPF)
• 刊名：Frontiers of Optoelectronics in China
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：9
• 期：3
• 页码：497-507
• 全文大小：309 KB
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Electromagnetism, Optics and Lasers
  Biomedical Engineering
  Chinese Library of Science
  
• 出版者：Higher Education Press, co-published with Springer-Verlag GmbH
• ISSN：2095-2767
• 卷排序：9

文摘

GaAs-based polarization modulators (PolMs) exhibit the unique characteristic of simultaneous intensity and complementary phase modulation owing to the linear electro-optic (LEO) effect determined by crystallographic orientations of the device. In this paper, we reviewed the principle of operation, the design and fabrication flows of a GaAs-based PolM. Analytical models are established, from which the features of a PolM are derived and discussed in detail. The recent advances in PolM-based multifunctional systems, in particular the PolM-based optoelectronic oscillator (OEO) are demonstrated with an emphasis on the remarkable development of applications for frequency conversion, tunable microwave photonic filter (MPF), optical frequency comb (OFC), arbitrary waveform generation (AWG) and beamforming. Challenges in practical implementation of the PolM-based systems and their promising future are discussed as well.