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groups:mg:private:steffensauer:metamirror [2020/01/16 10:25] – created ssauer | groups:mg:private:steffensauer:metamirror [2020/01/16 10:55] (current) – [Table] ssauer | ||
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==== Parameter ==== | ==== Parameter ==== | ||
- | Radius of curvature of mirror R1: R1= 500 mm | + | * Radius of curvature of mirror R1: R1= 500 mm -> Brennweite: 250 mm |
- | Radius of curvature of mirror R2: R2= infinity (Incoupling side) | + | |
- | Wavelength: λ= 1550.0 nm | + | |
- | Length between the resonator mirrors: L= 60 mm | + | |
- | Beam radius at cavity-waist: | + | |
- | Beam radius at mirror: w1, w2 | + | |
- | Distance between: | + | |
- | mirror R1 and mirror R2: L | + | |
- | mirror R2/lense 1 and lense 2: X | + | * mirror R2/ |
- | lense 2 focal length: Z | + | * mirror R2/lense 1 and lense 2: X |
- | mirror R2/lense 1 and collimatorlense: | + | |
- | collimatorlense and fiber: | + | |
+ | | ||
+ | * Brennweite der Linse des Kollimators: | ||
+ | * Strahlwaist am Ausgang der Faser: 5.2 µm | ||
+ | * Brechungsindex: | ||
+ | * Brechungsindex zwischen Optiken: 1 (Luft) | ||
+ | * Brechungsindex für Optiken: 1,5 (Glas) | ||
+ | * Brechungsindex für Spiegel: | ||
+ | * Silica: 3,48 | ||
+ | * Fused Silica: 1,5 | ||
==== Calculation ==== | ==== Calculation ==== | ||
Line 31: | Line 40: | ||
* **I**nsert | * **I**nsert | ||
* Nr. 1: Spiegel 1 with Krümmungsradius 500mm -> Brennweite: 250mm; Einfallwinkel: | * Nr. 1: Spiegel 1 with Krümmungsradius 500mm -> Brennweite: 250mm; Einfallwinkel: | ||
- | * Nr. 2: Abstand | + | * Nr. 2: Abstand |
* Nr. 3: Spiegel 2 with Brennweite | * Nr. 3: Spiegel 2 with Brennweite | ||
* Alternative: | * Alternative: | ||
- | -> Waistradius: | + | -> Waistradius: |
- | -> FSR = 1.499 GHz | + | -> FSR = 2,498 GHz |
=== Step 2: === | === Step 2: === | ||
- | * Change with " | + | * Change with " |
* Brechungsindex: | * Brechungsindex: | ||
* Brennweite: -400000000000000 mm | * Brennweite: -400000000000000 mm | ||
<note important> | <note important> | ||
- | * Abstand S2 zu " | ||
- | * Grenzfläche: | ||
- | * Abstand dicke Fenster: 6.35mm | ||
- | * Grenzfläche: | ||
- | * Programm berechnet hieraus Strahlrad.-1ym (Nicht realistisch) | ||
- | |||
=== Step 3: === | === Step 3: === | ||
* Nr. 4: Abstand einfügen als Variable X | * Nr. 4: Abstand einfügen als Variable X | ||
- | * Zusammengefasst aus einzelnen Messungen: X=530mm | + | |
- | | + | |
- | * Eingebaute Linse hat f=500mm=Z | + | |
* Nr. 6: Abstand mit festen Y und Variable X: Y - X | * Nr. 6: Abstand mit festen Y und Variable X: Y - X | ||
- | * Zusammengefasst aus einzelnen Messungen: Y=1188mm | + | * Zusammengefasst aus einzelnen Messungen: Y = 1226mm |
* Nr. 7: Linse 3 | * Nr. 7: Linse 3 | ||
- | * Brennweite | + | * Brennweite |
- | * Nr. 8: Abstand | + | * Nr. 8: Abstand |
* " | * " | ||
+ | |||
=== Step 4: Playing with the parameters X, Y and Z for the best Überlapp === | === Step 4: Playing with the parameters X, Y and Z for the best Überlapp === | ||
* with " | * with " | ||
- | ^ Lense focal length of Lense 2 Z [mm] | + | ^ Lense focal length of Lense 2 Z [mm] |
- | ^ Distance between mirror R2 and lense 2 X [mm] | | + | ^ Typ |
- | ^ Überlapp [%] | + | ^ Distance between mirror R2 and lense 2 X [mm] | |
+ | ^ Überlapp [%] | ||