›› 2014, Vol. 23 ›› Issue (12): 124211-124211.doi: 10.1088/1674-1056/23/12/124211

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

Optical pulse shaper with integrated slab waveguide for arbitrary waveform generation using optical gradient force

廖莎莎, 闵书存, 董建绩   

  1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2014-05-08 修回日期:2014-06-10 出版日期:2014-12-15 发布日期:2014-12-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096), the National Basic Research Program of China (Grant No. 2011CB301704), the Program for New Century Excellent Talents in Ministry of Education of China (Grant No. NCET-11-0168), and the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 201139).

Optical pulse shaper with integrated slab waveguide for arbitrary waveform generation using optical gradient force

Liao Sha-Sha (廖莎莎), Min Shu-Cun (闵书存), Dong Jian-Ji (董建绩)   

  1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2014-05-08 Revised:2014-06-10 Online:2014-12-15 Published:2014-12-15
  • Contact: Dong Jian-Ji E-mail:jjdong@mail.hust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096), the National Basic Research Program of China (Grant No. 2011CB301704), the Program for New Century Excellent Talents in Ministry of Education of China (Grant No. NCET-11-0168), and the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 201139).

摘要: Integrated optical pulse shaper opens up possibilities for realizing the ultra high-speed and ultra wide-band linear signal processing with compact size and low power consumption. We propose a silicon monolithic integrated optical pulse shaper using optical gradient force, which is based on the eight-path finite impulse response. A cantilever structure is fabricated in one arm of the Mach–Zehnder interferometer (MZI) to act as an amplitude modulator. The phase shift feature of waveguide is analyzed with the optical pump power, and five typical waveforms are demonstrated with the manipulation of optical force. Unlike other pulse shaper schemes based on thermo–optic effect or electro–optic effect, our scheme is based on a new degree of freedom manipulation, i.e., optical force, so no microelectrodes are required on the silicon chip, which can reduce the complexity of fabrication. Besides, the chip structure is suitable for commercial silicon on an insulator (SOI) wafer, which has a top silicon layer of about 220 nm in thickness.

关键词: pulse shaping, arbitrary waveform generation, optical grant force

Abstract: Integrated optical pulse shaper opens up possibilities for realizing the ultra high-speed and ultra wide-band linear signal processing with compact size and low power consumption. We propose a silicon monolithic integrated optical pulse shaper using optical gradient force, which is based on the eight-path finite impulse response. A cantilever structure is fabricated in one arm of the Mach–Zehnder interferometer (MZI) to act as an amplitude modulator. The phase shift feature of waveguide is analyzed with the optical pump power, and five typical waveforms are demonstrated with the manipulation of optical force. Unlike other pulse shaper schemes based on thermo–optic effect or electro–optic effect, our scheme is based on a new degree of freedom manipulation, i.e., optical force, so no microelectrodes are required on the silicon chip, which can reduce the complexity of fabrication. Besides, the chip structure is suitable for commercial silicon on an insulator (SOI) wafer, which has a top silicon layer of about 220 nm in thickness.

Key words: pulse shaping, arbitrary waveform generation, optical grant force

中图分类号:  (Ultrafast processes; optical pulse generation and pulse compression)

  • 42.65.Re
42.79.Gn (Optical waveguides and couplers) 42.50.Wk (Mechanical effects of light on material media, microstructures and particles) 42.79.Sz (Optical communication systems, multiplexers, and demultiplexers?)