INDYLIT
20
Industrial Femtosecond Laser for Material Processing
1030/515 nm, 400 fs – 2 ps, 20 W, 100 kHz – 1 MHz

WW W.LITILIT.C OM

ROBUST DESIGN AND NO MAINTENANCEFEATURESAPPLICATIONS– Extremely robust and stable– Material microprocessing– Adjustable repetition rate,pulse duration, power– Ophthalmology– High pulse energy and clean
pulse shape– Passively air cooled– Maintenance-free & turn-key– Protected against dust

– Semiconductor andelectronics– Display manufacturing– Battery manufacturing– Stainless steel black andcolor markingINDYLIT 20
The Indylit 20 is the highest average power and most efficient passively aircooled femtosecond laser on the market. If you need a reliable femtosecond
laser that is maintenance-free, turn-key and has exquisite optical parameters –look no further!
The laser features an innovative and patented passive cooling design, ensuringhigh stability of the optical parameters such as pulse duration, beam pointing,and power. Indylit 20 mechanical construction can withstand almost everything
you can throw at it. It is even protected against the dust!
Built-in optional second harmonics (SH) module provides wavelength extension
enabling even wider range of material processing applications.

SPECIFICATIONS
ModelIndylit 20Indylit 20 SH 1)

Central wavelength1030 ± 2 nm

515 ± 1 nm

Average power 2)> 13 W @ 100 kHz> 18 W @ 1 MHz(Typ 20 W @ 1 MHz)> 7 W @ 100 kHz> 3 W @ 1 MHz> 130 μJ

> 70 μJ

Max. pulse energy 2)
Pulse duration< 400 fs

Pulse duration tunability

400 fs – 2 ps

N/A

Switch time between outputs<1sInternal pulse repetition rate

100 kHz – 1 MHz,down to 30 kHz in burst mode

Pulse picker

integratedTriggering mode

Pulse picker control via TTL gate

Burst length

1...12 pulses

Max. energy in burst
Power attenuation> 500 μJ

Beam quality
Beam circularity 4)> 200 μJ
100 – 1%3)

M² < 1.2> 0.90> 0.85

Beam diameter (at 1/e² level)

2.6 ± 0.3 mm

2.3 ± 0.3 mm

Polarization

Linear horizontal, > 200:1 extinction

Prepulse contrast> 1:1000

Post pulse contrast> 1:100

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INDYLIT 20

SPECIFICATIONS (continued)

ModelIndylit 20

Indylit 20 SH 1)

Beam divergence (full angle)< 1 mradBeam pointing (RMS)< 20 μrad5)

Beam pointing vs temperature< 20 μrad/°C

Power stability (RMS) 6)
Pulse energy stability (RMS)7)

< 1%

< 2%

< 1%

< 2%

Warm-up time (cold start)< 30 minWarm-up time (warm start)< 3 min

Laser control interface

CAN, USB

Operating voltage

24V, 25A (100...240 V AC, 47...63 Hz
to 24V AC/DC converter included)

Average power consumption (afterwarm-up)

300 W

Maximal power rating

700 W

Operating temperature

18 – 32 °C 8)

Humidity

non condensing

Transportation/storage temperature-20 – +70 °C

Dimensions:
Laser head (L × W × H)
Control unit (L × W × H)
AC/DC converter (L x W x H)

498 x 248 x 194 mm
449 x 370 x 140 mm
250 x 125 x 60 mm

Umbilical length

3 ± 0.1 m

Colling:
Laser headControl unit

air (passive)
forced air (fans)1)

Indylit 20 SH model has also 1030 nm output with thesame specifications as Indylit 20 model. The outputs
can be switched by GUI interface or CAN command.

2)

Please refer to the power and energy vs. pulserepetition rate curves for typical values.

3)

Attenuation can be controlled by a few different
methods: a) by PC user interface, b) by CAN register,c) by analog input (0 – 1 V, rise time < 1 μs). Beamquality specifications are maintained down to 10%
power level.

4)

Defined as the worst case ellipticity along the z-scan(± 5 × LRayleigh) of the beam.

5)

Measured during 8 h operation starting 30 minutes
after warm-up. Environmental temperature stability
within ± 1 °C.

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6)

Measured with integration time of 1 s at the same
conditions as (6).

7)

Measured within 10 s time interval for at least 1000
pulses.

8)Higher operational temperature is available on
request. Please contact LITILIT for details.

9)Technology is protected by international patents:
LT6261 (B); JP6276471 (B2); US10038297 (B2);EP3178137; DK3178137 (T3); CN106575849 (B);PL3178137 (T3); LT6639 (B); LT2020 563

DANGER: VISIBLE AND/OR INVISIBLE
LASER RADIATION AVOID EYE OR SKINEXPOSURE TO DIRECT, REFLECTEDOR SCATTERED RADIATION

CLASS 4 LASER PRODUCTINDYLIT 20

Repetition rate, kHz

Average power dependence on thepulse repetition rate for infraredand green (SH option) output

Time, ps

Pulse autocorrelation traces ofoptimally compressed and maximally
stretched pulses at 130 μJ pulse
energy and 100 kHz repetition rate

Time, hLong term beam pointing
measurement

PERFORMANCE

Repetition rate, kHz

Pulse energy dependence on thepulse repetition rate for infraredand green (SH option) output

Distance, mmBeam z-scan measurement andbeam profile in far field

Time, hLong term output power stability

INDYLIT 20DRAWINGS

275
248

73

122

185

202

SH output
IR output (optional)

7974

144

152

477

245

762.4

498

175

225

Drawing of Indylit 20 laser head (in mm)

51

33Emission

140
133

ReadyError

Analog IN

Industrial Femtosecond Laser

USB

Sync OUTINDYLIT 20

PowerGate IN

PowerCAN

Auxiliary

24V DC, 25A

OFFInterlock
ON
GroundEMISSION

419

198

141

367

316

300

449

Drawing of Indylit 20 laser control unit (in mm)

info@litilit.com | +370 669 79833 | litilit.com

26293

INDYLIT 20

NOTESSavanoriu ave 235, LT-02300 Vilnius, Lithuania
info@litilit.com | +370 669 79833 | litilit.com
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