Novel Optical Sensors Based on Nonlinear Effects in Few-Mode Fibers
Novel Optical Sensors Based on Nonlinear Effects in Few-Mode Fibers
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In the first part of this webinar hosted by the Fiber Modeling and Fabrication Technical Group, Dr. Zhongqi Pan will present an introduction to the nonlinear phenomena in few-mode fibers (FMF) and their applications.


In recent times, spatial-division multiplexing (SDM) based fiber-optic sensors have attracted broad interest due to their prospective advantages such as high sensitivity and cost effectiveness. The main advantage of applying mode-division multiplexing (MDM) in fiber sensors is the outstanding multi-parameter discriminative capability depending on the correlation in-between spatial modes and/or cores, which serve as parallel sensors to measure different parameters using massive Multi-input Multi-output digital signal processing (MIMO-DSP) solutions. The key components of SDM technique, such as spatial light modulators and mode multiplexers, along with the recent developments in detection methods and performance limitations are discussed as well.


In the second half of this webinar, Mr. Yi Weng will discuss the progress of a wide variety of SDM sensing systems in terms of operation principle, fabrication methods, experimental design and sensing applications, including Brillouin optical time-domain reflectometry/Brillouin optical time-domain analysis (BOTDR/BOTDA) using FMF, as well as the multi-core fiber based integrated fiber Bragg grating (FBG) sensors.


Finally, the webinar will conclude with a prospective outlook for the opportunities and challenges of SDM technologies in optical sensing industry.


What You Will Learn/Seminar Objectives:

  • Background introduction of fiber nonlinearity in few-mode fibers
  • Limitations of current optical sensors using single-mode fibers
  • What can be doen to further improve the current state of the art
  • When and why multi-parameter discriminative measurement is important


Who Should Attend:

  • Graduate students
  • Undergraduate students
  • Educators in related fields
  • Optics & Photonics Industry



  • This webinar is targeted to both beginner and intermediate levels.
Seminar Information
Seminar Date:
February 01, 2016