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Mode Matching - second try

Mirror configuration

Parameter
  • Radius of curvature of mirror R1: R1= 1 m
  • Radius of curvature of mirror R2: R2= 1 m (Incoupling side)
  • Wavelength: λ= 1542.0 nm
  • Length between the resonator mirrors: L= 480 mm
  • Beam radius at cavity-waist: w0
  • 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 1 and collimatorlense: 600mm - X
      • 615mm = optical way of the incoupling breadboard (450mm) + thickness breadboard (10mm) + distance between breadboard and vacuumchamber (30mm) + distance between vacuumchamber and cavity mirror R2 (130mm)
    • collimatorlense and fiber: 2.75 µm

We used the programm Strahl.exe(IQ) or STRAHLFP.EXE (same software, but different names).
Step 1: Beam waist calculation from resonator

Step 2:

Step 3:

Step 4:

Step 4b