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 __   __     ___       _____    _____     ______  
 \ \\/ //   / _ \\    / ___//  |  ___||  /_   _// 
  \   //   / //\ \\   \___ \\  | ||__    `-| |,-  
  / . \\  |  ___  ||  /    //  | ||__      | ||   
 /_//\_\\ |_||  |_|| /____//   |_____||    |_||   
 `-`  --` `-`   `-` `-----`    `-----`     `-`'

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Text this: Optic fiber humidity sensor based on MZI-SMF.