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groups:mg:private:resonatoren:comb:start [2018/10/11 11:46] – ssauergroups:mg:private:resonatoren:comb:start [2024/03/20 09:37] (current) – Admin: Syntax-Update (Migration from deprecated "fontcolor" plugin to "color" plugin) klaus
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 =====Electronic part===== =====Electronic part=====
 +<note important>Attention: The pump diode current must not be set higher than **>9.5 (=950mA)**!\\
 +Never set the pump diode current to 10.0 (=1000mA = max. current of the pump diodes)!
 +</note>
 ==== Reprate ==== ==== Reprate ====
 === Repraten Aufbau ab Oktober 2018 === === Repraten Aufbau ab Oktober 2018 ===
-<fc #ff00ff>Siehe Foto</fc>+<color #ff00ff>Siehe Foto</color>
   * DXD200 Phase Detector:   * DXD200 Phase Detector:
     * Lock on     * Lock on
Line 51: Line 54:
   * Reprate ist fouriertransformiert der zeitliche Abstand zwischen zwei Pulsen   * Reprate ist fouriertransformiert der zeitliche Abstand zwischen zwei Pulsen
  
-===Regular problems=== +==== Turn off and on ====
- +
-  * Comb has to be optimized almost every day: Most of the times just tuning potis @ SHG & PCF is enough (see picture) +
-{{:groups:mg:img_1864.jpg?200|}} +
-  * Low power in general: Maybe pump diodes should be exchanged (15.09.2016: 145 mW Output @ 9.5) +
-  * Fiberlaser software does not start: Maybe wrong COM Port: Change @ Windows Device Manager +
-  * FiberLaser software starts, but Fiber Comb does not: Maybe NI card not attached properly +
-  * You can´t lock CEO and Reprate, than restart the hole lasersysteme [probable all ~1-2 months]. +
- +
-===Turn off and on===+
 {{:groups:mg:img_1863.jpg?200|}} {{:groups:mg:img_1863.jpg?200|}}
   * Turn off the frequency comb:   * Turn off the frequency comb:
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   * Turn on:   * Turn on:
     - exactly the other way arround     - exactly the other way arround
 +
 +==== Regular problems ====
 +
 +  * Comb has to be optimized almost every day: Most of the times just tuning potis @ SHG & PCF is enough (see picture)
 +{{:groups:mg:img_1864.jpg?200|}}
 +  * Fiberlaser software does not start: Maybe wrong COM Port: Change @ Windows Device Manager
 +  * FiberLaser software starts, but Fiber Comb does not: Maybe NI card not attached properly
 +  * You can´t lock CEO and Reprate, than restart the hole lasersysteme [probable all ~1-2 months].
 +
 +==== Irregular problems ====
 +  * Low power in general: Maybe pump diodes should be exchanged 
 +    * 15.09.2016: 145 mW Output @ 9.5
 +    * Last change 12/2019
 +  * No modelock possible
 +    * Decreasing of resonator coupling of comb. Noticed so far, if there was a failure of the air conditioning system:
 +      * Alignment of resonator
 +      * Manual: {{ :groups:mg:private:resonatoren:comb:optimizing_mirror_alignment_for_m-comb_neu_v1.3_npe.pdf |}}
 +      * Additional information:
 +        * Die Steuersoftware sieht anders aus, sie tut jedoch das selbe wie die in der Anleitung abgebildete Fiberlaser0.9.6. 
 +        * Der automatische Modelocksuche („relock“) bei Modelockverlust muss deaktiviert werden:
 +           * Die Spiegeljustage muss im nicht-modengekoppelten Zustand bei fixen Wellenplatten erfolgen. 
 +           * Dabei läuft der Laser im CW-Betrieb. 
 +           * Verstärker dürfen dabei nicht eingeschaltet werden.
 +        * Es wird auf die Ausgangsleistung des Freistrahlports optimiert.
 +          *  Eine Spiegeljustage nur anhand der DC-Werte ist auch möglich, jedoch ist die Auflösung und Reaktionszeit eines Powermeters in der Regel besser.
 +
 +
 +==== Output Ports ====
  
 === 1064 Port === === 1064 Port ===
Line 81: Line 103:
  
  
-==== Manuals and Datasheets ====+===== Manuals and Datasheets =====
   * Software for [[.:FiberLaser|FiberLaser]]    * Software for [[.:FiberLaser|FiberLaser]] 
   * Software for [[.:Fiber Comb Control|Fiber Comb Control]]   * Software for [[.:Fiber Comb Control|Fiber Comb Control]]
  
  
-==== Pictures from the inside of the frequency comb ====+===== Pictures from the inside of the frequency comb =====
 {{:groups:mg:20161114_160543.jpg?600|}}{{:groups:mg:20161114_160551.jpg?600|}}\\ {{:groups:mg:20161114_160543.jpg?600|}}{{:groups:mg:20161114_160551.jpg?600|}}\\