Random facts for tours Flashcards
1
Q
WL Supercontinuum gen
A
Self focusing - transverse spatial distribution of intenisty in the pulse
Self phase modulation - temporal distribution of a NL phase in the pulse
SF and SPM Limited by multiphoton absorption and ionization causeing defocusing - filament(s) when P>Pcrit
2
Q
Clark MXR laser process
A
Oscillator:
-Fiber laser output at 980nm
-SErF ouput at 1550nm
-PPLN doubles to produce 775nm
(oscillator output: 775nm polarised <150fs)
Pulse stretched then amplified:
-flashlamps -> Nd:YAG doubled in KDP into Ti;Sapp
Grating compressor
3
Q
Fiber oscillator
A
SErF fiber oscillator
fiber ring laser
unidirectional polarization rotation additively modelocked APM fibre laser
gain medium: Erbium doped fibre
Laser pumped by a diode laser diode at 980nm
