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groups:mg:project_ptb-cavity:incoupling_breadboard-board [2017/06/27 13:50] – pkoopmanngroups:mg:project_ptb-cavity:incoupling_breadboard-board [2017/09/05 13:03] (current) – ssauer
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 ====== Incoupling breadboard ====== ====== Incoupling breadboard ======
 +[[:groups:Mg:Project PTB-Cavity:Incoupling breadboard-Board:2D-drafts|2D Drafts of the mounts]] \\
 +Alle Dokumente befinden sich im AFS unter: \\AFS\.iqo.uni-hannover\projects\magnesium\Projekte\PTB Ultrastable laser\PTB Files\Breadboard \\
 +Breadboard: M4-Löcher im Abstand von 15 mm \\
 +Strahlhöhe: 29 mm (zu Beginn), 57 mm (zwischen Fahrstuhl und Einkoppelspiegel), 43 mm (vor PDH-diode)\\
 +\\
 +Anforderungen:
 +  * jedes Element verschiebbar, sodass keine Reflexe zurück ins System reflektiert werden
 +  * Mode Matching Linse auf einer Linear Stage, damit der Fokus direkt auf den ersten Spiegel fokussiert werden kann
 +  * zwei Blenden zur Justierung des Laserstrahls
 +  * jeder Halter individuell angepasst auf das Breadboard 
 +  * Isolatorhalter: speziell mit Dreipunktlagerung
 +  * Halter: zur Dreipunktlagerung auf Unter
 +  * Winkel bei den Spiegeln wurden nicht größer als im Datenblatt vorgeschrieben gewählt
 +
  
 ===== Version 5 ===== ===== Version 5 =====
 +  * two Waveplates can be mounted, so that the polarisation can be adjusted direktly in front of the cavity
 +  * "light-elevator"
 +  * the right PDs were used (PTB)
 {{:groups:mg:project_ptb-cavity:v5_-_oben.png?400|}} {{:groups:mg:project_ptb-cavity:v5_-_oben.png?400|}}
 {{:groups:mg:project_ptb-cavity:v5_-_vorne.png?400|}} {{:groups:mg:project_ptb-cavity:v5_-_vorne.png?400|}}
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 ===== Version 4 ===== ===== Version 4 =====
 +  * sending light upwards is not good, "elevator" is better
 +  * PDH-diode and RAM-diode: good, that there is the possibility to place isolators in front of them if they are needed
 +  * Breadboard bigger for more space
 +  * Vakuum-ground can be connected to vakuum-top by the breadboard
 {{:groups:mg:project_ptb-cavity:v4_-_oben.png?400|}} {{:groups:mg:project_ptb-cavity:v4_-_oben.png?400|}}
 {{:groups:mg:project_ptb-cavity:v4_-_vorne.png?400|}} {{:groups:mg:project_ptb-cavity:v4_-_vorne.png?400|}}
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 ===== Version 3 ===== ===== Version 3 =====
 +  * RAM-diode: no mirror in front of it for adjusting the laser beam
 +  * 
 {{:groups:mg:project_ptb-cavity:v3_-_oben.png?400|}} {{:groups:mg:project_ptb-cavity:v3_-_oben.png?400|}}
 {{:groups:mg:project_ptb-cavity:v3_-_vorne.png?400|}} {{:groups:mg:project_ptb-cavity:v3_-_vorne.png?400|}}
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 ===== Version 1 ===== ===== Version 1 =====
 +  * optical components were missing (cubes for adjusting the light)
 +  * PDH-diode and RAM-diode shouldn't be positioned after the same cube, so that they don't influence each other. So te RAM-diode was positioned direktly before the isolator
 {{:groups:mg:project_ptb-cavity:v1_-_oben.png?400|}} {{:groups:mg:project_ptb-cavity:v1_-_oben.png?400|}}
 {{:groups:mg:project_ptb-cavity:v1_-_vorne.png?400|}} {{:groups:mg:project_ptb-cavity:v1_-_vorne.png?400|}}