====== Fiber link ======
====== Fiber stabilization ======

===== Multipoint/Manypoint box (PTB) =====
Eavesdropping time and frequency: phase noise cancellation along a time-varying path, such as an optical fiber: {{ :groups:mg:ol-39-9-2545.pdf |}}
{{:groups:mg:multipoint.jpg?800|}}

 * Nach Möglichkeit sollten die Strecken f2 = f3 + f4 gleich lang sein, damit die Strecke f3 + f4 stabilisiert ist!


===== Paper =====
  * http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6702156
  * https://www.osapublishing.org/ol/abstract.cfm?uri=ol-39-9-2545

===== Scheme =====
{{:groups:mg:20160930_122216.jpg?400|}}