中国物理B ›› 2014, Vol. 23 ›› Issue (3): 33201-033201.doi: 10.1088/1674-1056/23/3/033201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Diversity of photonic differentiators based on flexible demodulation of phase signals

郑傲凌, 董建绩, 雷蕾, 杨婷, 张新亮   

  1. Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2013-06-16 修回日期:2013-09-16 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB301704), the Program for New Century Excellent Talents in Universities of China (Grant No. NCET-11-0168), the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 201139), and the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096).

Diversity of photonic differentiators based on flexible demodulation of phase signals

Zheng Ao-Ling (郑傲凌), Dong Jian-Ji (董建绩), Lei Lei (雷蕾), Yang Ting (杨婷), Zhang Xin-Liang (张新亮)   

  1. Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2013-06-16 Revised:2013-09-16 Online:2014-03-15 Published:2014-03-15
  • Contact: Dong Jian-Ji E-mail:jjdong@mail.hust.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2011CB301704), the Program for New Century Excellent Talents in Universities of China (Grant No. NCET-11-0168), the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 201139), and the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096).

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摘要： We theoretically propose a multifunctional photonic differentiation (DIFF) scheme based on phase demodulation using two cascaded linear filters. The photonic DIFF has a diversity of output forms, such as the 1st order intensity DIFF, the 1st order field DIFF and its inversion, and the 2nd-order field DIFF, depending on the relative shift between the optical carrier and the filter’s resonant notches. As a proof, we also experimentally demonstrate the DIFF diversity using a phase modulator and two delay interferometers (DIs). The calculated average deviation is less than 7% for all DIFF waveforms. Our schemes show the advantages of flexible DIFF functions and forms, which may have different optical applications. For example, high order field differentiators can be used to generate complex temporal waveforms, and intensity differentiators are useful for the ultra-wideband pulse generation.

关键词: photonic differentiator, pulse shaping, microwave photonics

Abstract: We theoretically propose a multifunctional photonic differentiation (DIFF) scheme based on phase demodulation using two cascaded linear filters. The photonic DIFF has a diversity of output forms, such as the 1st order intensity DIFF, the 1st order field DIFF and its inversion, and the 2nd-order field DIFF, depending on the relative shift between the optical carrier and the filter’s resonant notches. As a proof, we also experimentally demonstrate the DIFF diversity using a phase modulator and two delay interferometers (DIs). The calculated average deviation is less than 7% for all DIFF waveforms. Our schemes show the advantages of flexible DIFF functions and forms, which may have different optical applications. For example, high order field differentiators can be used to generate complex temporal waveforms, and intensity differentiators are useful for the ultra-wideband pulse generation.

Key words: photonic differentiator, pulse shaping, microwave photonics

中图分类号:  (Radio-frequency, microwave, and infrared spectra)

  • 32.30.Bv
84.40.-x (Radiowave and microwave (including millimeter wave) technology) 42.79.Sz (Optical communication systems, multiplexers, and demultiplexers?)