Optical Switches for Large Core Diameter Optical Fibers (POF & PCF)

Md Moinul Islam Bhuiyan, Yoichi Haga, Masayoshi Esashi

Research output: Contribution to journalConference articlepeer-review


POF (Plastic Optical Fiber) is more suitable than the quartz optical fiber for indoor LAN (Local Area Network), for example in-home or office networks because of its flexibility and ease of connection by relatively large core diameter. 1 x 2 optical switches for indoor LAN using POF have been developed. For switching by movement of a POF, large displacement is necessary as core diameter is large (e.g. 0.486mm). A SMA (shape memory alloy) coil actuator is used for large displacement and a magnetic latching system is used for fixing the position of the shifted POF. Switching speed is less than 0.5 second and the insertion loss of the fabricated switch is 0.40 to 0.50dB. The insertion loss is 0.06 to 0.09dB using index-matching oil. PCF (Plastic Clad Fiber) has also large core diameter (e.g. 0.20mm) and an optical switches using PCF will be useful for short distance network between buildings.

Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2004 May 10
EventMOEMS and Miniaturized Systems IV - San Jose, CA., United States
Duration: 2004 Jan 272004 Jan 28


  • Indoor LAN
  • Magnetic latch
  • Optical switch
  • Plastic optical fiber
  • Shape memory alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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