Encyclopedia > Mandrel wrapping

  Article Content

Mandrel wrapping

Mandrel wrapping: In multimode fiber optics, a technique used to modify the modal distribution[?] of a propagating optical signal.

Note: A cylindrical rod wrap consists of a specified number turns of fiber on a mandrel of specified size, depending on the fiber characteristics and the desired modal distribution. It has application in optical transmission performance tests, to simulate, i.e., establish, equilibrium mode distribution[?] in a launch fiber (a fiber used to inject a test signal in another fiber that is under test). If the launch fiber is fully filled ahead of the mandrel wrap, the higher-order modes will be stripped off, leaving only lower-order modes. If the launch fiber is underfilled, e.g., as a consequence of being energized by a laser diode or edge-emitting LED[?], there will be a redistribution to higher-order modes until modal equilibrium is reached.

Source: from Federal Standard 1037C



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
242

... 220s 230s - 240s - 250s 260s 270s 280s 290s Years: 237 238 239 240 241 - 242 - 243 244 245 246 247 Events Patriarch Titus[?] succeeds Patriarch Eugenius I[?] as ...

 
 
 
This page was created in 35.1 ms