ZTE

ZTE Communications ›› 2014, Vol. 12 ›› Issue (4): 49-53.DOI: DOI:10.3969/j.issn.1673-5188.2014.04.007

• Research Paper • Previous Articles     Next Articles

Influence on Multimode Rectangular Optical Waveguide Propagation Loss by Surface Roughness

Chuanlu Deng1, Li Zhao2, Zhe Liu2, Nana Jia1, Fufei Pang1, and Tingyun Wang1   

  1. 1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200093, China;
    2. Manufacture Technology Research Dept., ZTE Corporation, Shenzhen 518057, China
  • Received:2014-11-02 Online:2014-12-25 Published:2014-12-25
  • About author:Chuanlu Deng (chuanludeng@163.com) received his BS degree from Ludong University, China in 2005 and master’s degree from University of Shanghai for Science and Technology in 2009. From 2009 to 2013, he worked as an optical engineer at Shanghai Wei Qi for Photoelectric Science and Technology Co., Ltd. and then Shanghai Ya Ming Lighting Co., Ltd. He is currently a doctoral candidate of Shanghai University, with a major in Communication and Information Systems. His research interests include optical PCBs interconnection technologies.

    Li Zhao (zhao.li8@zte.com.cn) received her BS and master′s degrees from College of Microelectronics and Solid Electronics, University of Electronic Science and Technology of China (UESTC). She is currently a process engineer at ZTE Corporation.

    Zhe Liu (liu.zhe@zte.com.cn) received his BS and master′s degree from UESTC. He is currently a chief process engineer at ZTE Corporation.

    Nana Jia (18817872809@163.com) received her BS degree from College of Information Technology and Communication, Qufu Normal University, China in 2012. She is currently a master candidate of Shanghai University, with a major in Communication and Information Systems. Her research interests include optical PCBs interconnection technologies.

    Fufei Pang (ffpang@shu.edu.cn) received his PhD degree in optical engineering from Shanghai Institute of Optics and Fine Mechanics of Chinese Academy of Sciences in 2006. He is currently a professor of Shanghai University. His research interests include specialty fiber for optical sensing applications.

    Tingyun Wang (tywang@mail.shu.edu.cn) received his BS degree in automatic engineering from Hebei Institute of Technology, China in 1983, MS degree in electrical engineering from Harbin University of Science and Technology, China in 1986, and PhD degree in electromagnetic measurement and instrumentation from Harbin Institute of Technology, China in 1998. He worked as a post doctorate fellow at Tsinghua University, China from 1998 to 2000. His major interests lie in specialty fiber optics, fiber optic sensors, nano-photonics and fiber devices and their systems. Dr. Wang is a member of Optical Society of America (OSA) and senior member of The Chinese Optical Association. He is also editors of Journal of Opto-Electronics Laser (in Chinese) and Opto-Electronics Letters.
  • Supported by:
    This work is supported by the Project of Shanghai Committee of Science and Technology under Grant No. 10511500500 and ZTE Industry-AcademiaResearch Cooperation Funds.

Influence on Multimode Rectangular Optical Waveguide Propagation Loss by Surface Roughness

Chuanlu Deng1, Li Zhao2, Zhe Liu2, Nana Jia1, Fufei Pang1, and Tingyun Wang1   

  1. 1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200093, China;
    2. Manufacture Technology Research Dept., ZTE Corporation, Shenzhen 518057, China
  • 作者简介:Chuanlu Deng (chuanludeng@163.com) received his BS degree from Ludong University, China in 2005 and master’s degree from University of Shanghai for Science and Technology in 2009. From 2009 to 2013, he worked as an optical engineer at Shanghai Wei Qi for Photoelectric Science and Technology Co., Ltd. and then Shanghai Ya Ming Lighting Co., Ltd. He is currently a doctoral candidate of Shanghai University, with a major in Communication and Information Systems. His research interests include optical PCBs interconnection technologies.

    Li Zhao (zhao.li8@zte.com.cn) received her BS and master′s degrees from College of Microelectronics and Solid Electronics, University of Electronic Science and Technology of China (UESTC). She is currently a process engineer at ZTE Corporation.

    Zhe Liu (liu.zhe@zte.com.cn) received his BS and master′s degree from UESTC. He is currently a chief process engineer at ZTE Corporation.

    Nana Jia (18817872809@163.com) received her BS degree from College of Information Technology and Communication, Qufu Normal University, China in 2012. She is currently a master candidate of Shanghai University, with a major in Communication and Information Systems. Her research interests include optical PCBs interconnection technologies.

    Fufei Pang (ffpang@shu.edu.cn) received his PhD degree in optical engineering from Shanghai Institute of Optics and Fine Mechanics of Chinese Academy of Sciences in 2006. He is currently a professor of Shanghai University. His research interests include specialty fiber for optical sensing applications.

    Tingyun Wang (tywang@mail.shu.edu.cn) received his BS degree in automatic engineering from Hebei Institute of Technology, China in 1983, MS degree in electrical engineering from Harbin University of Science and Technology, China in 1986, and PhD degree in electromagnetic measurement and instrumentation from Harbin Institute of Technology, China in 1998. He worked as a post doctorate fellow at Tsinghua University, China from 1998 to 2000. His major interests lie in specialty fiber optics, fiber optic sensors, nano-photonics and fiber devices and their systems. Dr. Wang is a member of Optical Society of America (OSA) and senior member of The Chinese Optical Association. He is also editors of Journal of Opto-Electronics Laser (in Chinese) and Opto-Electronics Letters.
  • 基金资助:
    This work is supported by the Project of Shanghai Committee of Science and Technology under Grant No. 10511500500 and ZTE Industry-AcademiaResearch Cooperation Funds.

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Abstract: Optical scattering loss coefficient of multimode rectangular waveguide is analyzed in this work. First, the effective refractive index and the mode field distribution of waveguide modes are obtained using the Marcatili method. The influence on scattering loss coefficient by waveguide surface roughness is then analyzed. Finally, the mode coupling efficiency for the SMF-Optical-Waveguide (SOW) structure and MMF-OpticalWaveguide (MOW) structure are presented. The total scattering loss coefficient depends on modes scattering loss coefficients and the mode coupling efficiency between fiber and waveguide. The simulation results show that the total scattering loss coefficient for the MOW structure is affected more strongly by surface roughness than that for the SOW structure. The total scattering loss coefficient of waveguide decreases from 3.97 × 10-2 dB/cm to 2.96 × 10-4 dB/cm for the SOW structure and from 5.24 × 10-2 dB/cm to 4.7 × 10-4 dB/ cm for the MOW structure when surface roughness is from 300nm to 20nm and waveguide length is 100cm.

Key words: optical interconnect, surface roughness, optical waveguide, scattering loss coefficient

摘要： Optical scattering loss coefficient of multimode rectangular waveguide is analyzed in this work. First, the effective refractive index and the mode field distribution of waveguide modes are obtained using the Marcatili method. The influence on scattering loss coefficient by waveguide surface roughness is then analyzed. Finally, the mode coupling efficiency for the SMF-Optical-Waveguide (SOW) structure and MMF-OpticalWaveguide (MOW) structure are presented. The total scattering loss coefficient depends on modes scattering loss coefficients and the mode coupling efficiency between fiber and waveguide. The simulation results show that the total scattering loss coefficient for the MOW structure is affected more strongly by surface roughness than that for the SOW structure. The total scattering loss coefficient of waveguide decreases from 3.97 × 10-2 dB/cm to 2.96 × 10-4 dB/cm for the SOW structure and from 5.24 × 10-2 dB/cm to 4.7 × 10-4 dB/ cm for the MOW structure when surface roughness is from 300nm to 20nm and waveguide length is 100cm.

关键词: optical interconnect, surface roughness, optical waveguide, scattering loss coefficient