Text this: Study on the passively mode-locked fiber laser with different cavity dispersion

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