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--- groups:mg:ring-down_box [2018/01/17 09:11] – ssauer
+++ groups:mg:ring-down_box [2018/09/04 12:40] (current) – removed ssauer
@@ Line 1: / Line 1: @@
-====== Ring-down Box ======
-===== Application of the ring-down box =====
-You can measure the finesse of a resonator with the ring-down box **without** locking the resonator!
-==== Advantages ====
-  - super fast (see characterization)
-  - without locking the resonator
-{{ :groups:mg:ring-down-box_ohnelambda4.png?800|}}
-==== Measurement Method ====
-==== Evaluation ====
-Use this formula to analyse the datapoints:\\ y(x)=A*exp^(-x/t)+y0 with x:=time, t:= delay time\\
-Afterwards calculate the finesse with F=2pi*t*FSR with FSR:=free spectral range.
-==== Electronic setup ====
-  * Electronic drawing (PDF-file)
-=== Explanation of the operating principle ===
-Bilder rein mit dem Kurbven etc.
-=== List of components ===
-  * "flipflop" (datasheet)