中国物理B ›› 2013, Vol. 22 ›› Issue (9): 94215-094215.doi: 10.1088/1674-1056/22/9/094215

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

All-optical modulator based on a ferrofluid core metal cladding waveguide chip

韩庆邦a, 殷澄a, 李建a, 汤一彬a, 单鸣雷a, 曹庄琪b   

  1. a Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou 213022, China;
    b Department of Physics, State Key Lab of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2012-11-09 修回日期:2013-04-01 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274091 and 11274092) and the Fundamental Research Funds for the Central Universities of Hohai University, China (Grant No. 2011B11014).

All-optical modulator based on a ferrofluid core metal cladding waveguide chip

Han Qing-Bang (韩庆邦)a, Yin Cheng (殷澄)a, Li Jian (李建)a, Tang Yi-Bin (汤一彬)a, Shan Ming-Lei (单鸣雷)a, Cao Zhuang-Qi (曹庄琪)b   

  1. a Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou 213022, China;
    b Department of Physics, State Key Lab of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2012-11-09 Revised:2013-04-01 Online:2013-07-26 Published:2013-07-26
  • Contact: Yin Cheng E-mail:cyin.phys@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274091 and 11274092) and the Fundamental Research Funds for the Central Universities of Hohai University, China (Grant No. 2011B11014).

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摘要： We propose a novel optical intensity modulator based on the combination of a symmetrical metal cladding optical waveguide (SMCW) and ferrofluid, where the ferrofluid is sealed in the waveguide to act as a guiding layer. The light matter interaction in the ferrofluid film leads to the formation of a regular nanoparticle pattern, which changes the phase match condition of the ultrahigh order modes in return. When two lasers are incident on the same spot of the waveguide chip, experiments illustrate all-optical modulation of one laser beam by adjusting the intensity of the other laser. A possible theoretical explanation may be due to the optical trapping and Soret effect since the phenomenon is considerable only when the control laser is effectively coupled into the waveguide.

关键词: symmetrical metal cladding waveguide chip, ultrahigh order modes, ferrofluids, all-optical devices

Abstract: We propose a novel optical intensity modulator based on the combination of a symmetrical metal cladding optical waveguide (SMCW) and ferrofluid, where the ferrofluid is sealed in the waveguide to act as a guiding layer. The light matter interaction in the ferrofluid film leads to the formation of a regular nanoparticle pattern, which changes the phase match condition of the ultrahigh order modes in return. When two lasers are incident on the same spot of the waveguide chip, experiments illustrate all-optical modulation of one laser beam by adjusting the intensity of the other laser. A possible theoretical explanation may be due to the optical trapping and Soret effect since the phenomenon is considerable only when the control laser is effectively coupled into the waveguide.

Key words: symmetrical metal cladding waveguide chip, ultrahigh order modes, ferrofluids, all-optical devices

中图分类号:  (Waveguides, couplers, and arrays)

  • 42.82.Et
47.65.Cb (Magnetic fluids and ferrofluids)