INDYLIT 20

Industrial Femtosecond Laser for Material Processing

1030/515 nm, 400 fs – 2 ps, 20 W, 100 kHz – 1 MHz

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Indylit 20 industrial femtosecond laser with Control Unit

Standout features:

Extremely robust and stable
Adjustable repetition rate, pulse duration, power
High pulse energy and clean pulse shape
Passively air cooled
Maintenance-free & turn-key
Protected against dust

Applications:

Materials microprocessing
Ophthalmology
Semiconductor and electronics
Display manufacturing
Battery manufacturing

Robust design and no maintenance

The Indylit 20 is the highest average power and most efficient passively air- cooled 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, ensuring high 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.

Product data sheet

Specifications	Model
	Indylit 20	Indylit 20 SH ¹⁾
Central wavelength	1030 ± 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
Max. pulse energy ²⁾	> 130 μJ	> 70 μJ
Pulse duration	< 400 fs
Pulse duration tunability	400 fs – 2 ps	N/A
Switch time between outputs	< 1 s
Internal pulse repetition rate	100 kHz – 1 MHz, down to 30 kHz in burst mode
Pulse picker	Integrated
Triggering mode	Pulse picker control via TTL gate
Burst length	1...12 pulses
Max. energy in burst	> 500 μJ	> 200 μJ
Power attenuation ³⁾	100 – 1%
Beam quality	M² < 1.2
Beam circularity ⁴⁾	> 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
Beam divergence (full angle)	< 1 mrad
Beam pointing (RMS) ⁵⁾	< 20 μrad
Beam pointing vs temp.	< 20 μrad/°C
Power Stability (RMS) ⁶⁾	< 1%	< 2%
Pulse Energy Stability (RMS) ⁷⁾	< 1%	< 2%
Warm-up time (cold start)	< 30 min
Warm-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 (after warm-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 x W x H) Control unit (L x W x 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 head Control unit	air (passive) forced air (fans)

1) Indylit 20 SH model has also 1030 nm output with the same 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. pulse repetition 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). Beam quality 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.
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.