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  ______     ___     ______     _____     ______  
 /_   _//   / _ \\  |      \\  |  ___||  /_____// 
   | ||    / //\ \\ |  --  //  | ||__    `____ `  
  _| ||   |  ___  |||  --  \\  | ||__    /___//   
 /__//    |_||  |_|||______//  |_____||  `__ `    
 `--`     `-`   `-` `------`   `-----`   /_//     
                                         `-`

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Text this: A Mach-Zehnder interferometer by combining a microtaper with a long period grating in an all solid photonic bandgap fiber and its temperature sensing characteristic