Modeling machining of optical fibers by femtosecond laser
Theoretical model
Experiments
Results
Outline
Preface
"Why are you even here ?"
That's why !
Theoritical model
ABCD matrix analysis
{x_2 \choose \theta_2} = \begin{pmatrix} A & B \\ C & D \end{pmatrix}{x_1 \choose \theta_1}
Okay but you're not using rays !
...yes I am
But you do not have to take my word for it
Q_2 = \frac{A Q_1 + B}{C Q_1 + D}
Experiments
Write line
Etch
Repeat
Profit ?
Amazing result
with 10 min etch
with 1hr etch
Results
Other
In the last episode...
Calculated focalisation
Calculated inter-waist distance
Theory vs. Pratice
A problem of numerical precision ?
NOPE
So what then ?
Closing thoughts
Unresolved issues
- No way to integrate the input power
- No consideration of the plasma formed
- No real model of the warp of the beam surface
- ...
Thanks for your attention !
Questions ?
Présentation de fin de SIP
By Claude-Alban RANÉLY-VERGÉ-DÉPRÉ
