I made new simulations taking into account also the telescope for the beam reflected from the cavity into the homodyne.
Injection telescope:
focal lenght 1 = -101.65 mm
focal lenght 2= 204.6 mm
Reflection telescope:
focal lenght 1= 203.3 mm
focal lenght 2 = -101.65 mm
In fig 3 you can find the scheme of the two telescopes on the bench.
Next step:
- Test the two telescopes