1. Fibre Lasers for SILIcon testing

2. The Glaser laser The most common in HEP. Versions in 1060, 980, 660 nm
Rise Time <0,5 ns
Fall Time <0,5 ns
Optical power:
<2 mW – 660 nm
<1.5 mW 980 nm
< 2mW 1060
Focuser:
fiber pigtailed focuser with working distance of 12mm. Magnification of one.
Example of model: WL of source 1060 nm
Working distance : 12 mm
Slit Width = 5 micron
Correction Factor at 5/20.4 = 0.25 is 0.95
Actual spot diameter :
X: 20.7X0.95=19.7 micron
Y:20.4X0.95=19.4 micron

3. standard setup Cost: ~ 30 k€ Particulars – Ljubliana
Complete TCT setup.
Laser diode
wavelength: 660 nm, 1064 nm (optional others)
Pulse: 20 to 2000 k electrons
pulse width: <350 ps ps (tunable)
running : pulse: 50 Hz - 1MHz ,
pattern mode: mHz to 100 kHZ
Optics
beam spot (FWHM) :
<11 nm,
<8 nm
Coupling: fibre coupled
size:
<12 nm,
<8 nm
moving range: 5 cm x 5 cm x 5cm (x,y,z)
resolution: < 1 micron
mounting plane: 5 cm x 5 cm
Cost: ~ 30 k€

4. Particulars – Ljubliana
Large setup
Complete TCT setup.
Laser diode
wavelength: 660 nm, 1064 nm (optional others)
Pulse: 20 to 2000 k electrons
pulse width: <350 ps ps (tunable)
running : pulse: 50 Hz - 1MHz ,
pattern mode: mHz to 100 kHZ
Optics
beam spot (FWHM) :
<11 nm,
<8 nm
Coupling: fibre coupled
size:
<12 nm,
<8 nm
moving range: 5 cm x 5 cm x 5cm (x,y,z)
resolution: < 1 micron
mounting plane: 5 cm x 5 cm

5. Educational Compact setup Particulars – Ljubliana Complete TCT setup.
Laser diode
wavelength: 660 nm, 1064 nm (optional others)
Pulse: 20 to 2000 k electrons
pulse width: <350 ps ps (tunable)
running : pulse: 50 Hz - 1MHz ,
pattern mode: mHz to 100 kHZ
Optics
beam waist ~1 mm
Coupling: fibre coupled
moving range: 5 cm x 5 cm
resolution: < 1 micron
mounting plane: 5 cm x 5 cm

6. Lasers available at Particulars
Wavelength
ID of the laser
1064 nm,fibre coupled laser FC
LA-01 IR FC
980 nm, fibre coupled laser FC
LA-01 NIR FC
660 nm, fibre coupled laser FC
LA-01 R FC
520 nm, fibre coupled laser FC
LA-01 G FC
405 nm, fibre coupled laser FC
LA-01 B FC
1310 nm, bare/open diode
LA-01 FIR B
1064 nm, bare/open diode
LA-01 IR B
935 nm, bare/open diode
LA-01 NIR B
640 nm, bare/open diode
LA-01 R B
520 nm, bare/open diode
LA-01 G B
405 nm, bare/open diode
LA-01 B B

7. Going FEMTO
For single photon TCT, pulse energies of about pJ are enough
1 pJ ~ 6 Mphotons
For Two photon TCT one needs a photon density of 1 per million cubic micron in 100 fs  about 0.2 pJ per 1300 nm
This requires HNA lenses to focus in small volumes.
HNA implies small working distances.

8. Pulsed femtosecond laser systems
TOPTICA
780 nm, 80 MHz
< 1 pJ per pulse, 90 fs
MENLO
1560/780 nm, 100 MHz
< 1 pJ per pulse, 150 fs
MENLO
1560/780 nm, 100 MHz
< 1 nJ per pulse, 150 fs