NANOSECOND LASERS
Nanosecond Tunable Wavelength Lasers

NL200 ▪ NL230 ▪ NL300

NL300 seriesCompact
Flash-Lamp
Pumped Q-switched
Nd:YAG Lasers
F E AT U R E S▶ Customers recognized reliability▶ Two years warranty

Nanosecond
Nanosecond Lasers▶ Rugged sealed laser cavity▶ Up to 1100 mJ pulse energy▶ Better than 1 % StDev pulseenergy stability▶ 5 – 20 Hz pulse repetition rate
▶ 3 – 6 ns pulse duration▶ Thermo stabilized second,

BENEFITS▶ High pulse energy (up to 1100 mJ

at 1064 nm, 700 mJ at 532 nm and450 mJ at 355 nm) ensures strong
interaction with material whichis excellent for LIBS and material
ablation applications▶ Cost-effective, single-cavity

design with no amplifiers for easyalignment, high reliability and low
maintenance costs▶ Small size saves valuable space in▶ Fast flashlamp replacement without

realignment of laser cavity ensureseasy maintenance▶ Air cooling enables simple

installation, easy operation and low
maintenance costs▶ Variety of interfaces: USB, RS232,

optional LAN and WLAN ensureseasy integration with otherequipment

third, fourth and fifth harmonic
generator modules▶ Optional attenuators for

fundamental and/or harmonic
wavelengths▶ Water-to-water or water-to-air

cooling options▶ Replacement of flashlamps without

misalignment of laser cavity▶ Remote control via keypad and/or

RS232/USB port

the laboratory room

NL300 series electro-opticallyQ-switched nanosecond Nd:YAG lasers
produce high energy pulses with3 – 6 ns duration. Pulse repetition rate
can be selected in range of 5 – 20 Hz.
NL30×HT models are designed for
maximum energy extraction from theactive element. Up to 1100 mJ pulse
energy can be produced at a 5 Hz
pulse repetition rate.
A wide range of harmonic generator
modules for generation up to a 5th
harmonic is available. Harmonicgenerators can be combined withattenuators that allow smooth output
energy adjustment without changing
other laser parameters, i.e. pulse
duration, pulse-to-pulse stability,
divergence or beam profile. For a
more detailed description of harmonic34

and attenuator modules please check
our harmonic generators selection
guide on the page 36.
The extremely compact laser head isapproximately 480 mm long and canbe fitted into tight spaces. The laser
power supply has a 330 × 490 mm
footprint. Easy access to the watertank from the back side of the power
supply facilitates laser maintenance.
Replacement of flashlamp does not
require removal of pump chamberfrom the laser cavity and does notlead to possible misalignment.
The powering unit can beconfigured with water-to-water orwater-to-air heat exchangers. The
latter option allows for laser operation
without the use of tap water forcooling.

A P P L I C AT I O N S▶ Material ablation▶ LIBS (Light Induced BreakdownSpectroscopy)▶ OPO pumping▶ Remote Sensing▶ LIDAR (Light Detection AndRanging)▶ Mass Spectroscopy▶ LIF (Light Induced Fluorescence)

For customer convenience the laser
can be controlled via PS withLabView™ drivers (included) or aremote control pad. Both options
allow easy control of laser settings.

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S P E C I F I C AT I O N S 1)
ModelPulse repetition rate

10 Hz

Pulse energy:

at 1064 nm

750 mJ2)

at 355 nm 3)

at 266 nm 4)
at 213 nm 5)

Pulse energy stability (StdDev)

10 Hz

700 mJ

1000 mJ

1100 mJ

210 mJ

320 mJ

450 mJ

20 mJ

25 mJ

380 mJ

320 mJ

80 mJ

60 mJ

250 mJ
13 mJ

500 mJ1%

1.5 %at 266 nm

3.5 %Power drift 7)±2 %at 355 nm

3%

at 213 nm

6%

Pulse duration 8)

Polarization3 – 6 nsvertical, >90 %Optical pulse jitter 9)
Linewidth~8 mm

Beam divergence 12)

50 µrad RMS

Beam height

68 mm

PHYSICAL CHARACTERISTICS

Laser head size (W × L × H) 14)

154 × 475 × 128 mm

Power supply unit (W × L × H)

330 × 490 × 585 mm

Umbilical length

2.5 m

OPERATING REQUIREMENTS

Water consumption (max 20 °C) 15)<8 l/minAmbient temperature
Relative humidity

Power consumption 18)<1 kVA

Cleanliness of the room5)

With H300SH, H300S or H300SHC harmonicgenerator modules. See harmonic generator
selection guide on the page 36 for moredetailed information.

With H300THC harmonic generator modules.
See harmonic generator selection guide on thepage 36 for more detailed information.
With H300SH and H400FHC harmonicgenerator modules. See harmonic generator
selection guide on the page 36 for moredetailed information.

With H300FiHC harmonic generator module.
See harmonic generator selection guide on thepage 36 for more detailed information.

<12 l/min<10 l/min

15–30 °C

<6 l/min20 – 80 % (non-condensing)16) 17)

Due to continuous improvement, allspecifications are subject to change without
notice. The parameters marked typical are notspecifications. They are indications of typicalperformance and will vary with each unit
we manufacture. Unless stated otherwise all
specifications are measured at 1064 nm and forbasic system without options.

~10 mm<0.6 mrad

Beam pointing stability 13)

4)vertical, >90 %Hat-Top in near and near Gaussian in far fields

Typical beam diameter 11)

3)

vertical, >65 %<0.5 ns StDev<1 cm⁻¹

Beam profile 10)2)

120 mJ

6)

at 532 nm

1)

5 Hz

700 mJ

100 mJ

10 mJ

at 1064 nm

Power requirements

NL305HT

20 Hz

Nanosecond
Nanosecond Lasers

at 532 nm

NL303HT

Nanosecond Tunable Wavelength Lasers

NL300 series

NANOSECOND LASERS6)

7)

8)9)
10)

11)

12)
13)

14)

15)

16)

208 – 240 V AC, single phase 50/60 Hz<1.5 kVA<1.5 kVA

not worse than ISO Class 9

Averaged from pulses, emitted during 30 sec
time interval.

<1 kVADANGER

Measured over 8 hours period after 20 min
warm-up when ambient temperature variationis less than ± 2 °C and humidity <± 5%.

VISIBLE AND/OR INVISIBLE LASER RADIATIONAVOID EYE OR SKIN EXPOSURE TO DIRECT
REFLECTED OR SCATTERED RADIATIONFWHM.

Nd:YAG 1064 nm, 532 nm, 355 nm,266 nm, 213 nm. Max. 1000 mJ, pulse 3 ns
CLASS IV LASER PRODUCT

Relative to SYNC OUT pulse.

Near field (at the output aperture) TOP HAT
fit is >70%.

Beam diameter is measured at 1064 nm at the1/e² level.
Full angle measured at the 1/e² level.

Beam pointing stability is evaluated as
movement of the beam centroid in the focal
plane of a focusing element.

See harmonic generator selection guide on thepage 36 for harmonic generators units sizes.
For water cooled version. Air cooled version
does not require tap water for cooling.

Power requirements should be specified whenordering.

17)

18)

110 V AC powering is available, please inquiry
for details.
Required current rating can be calculated by
dividing power value by mains voltage value.

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35

NL300 series

NANOSECOND LASERS
Nanosecond Tunable Wavelength Lasers▶ Option -AW – air-cooled power supply option. An adequate air conditioner should be installed inOPTIONS

order to keep room temperature stable.

▶ Harmonic generator options – an extensive selection of harmonic generators up to 5th harmonic.
▶ Attenuator options allow a smooth change of laser pulse energy, while other laser pulse

parameters, such as pulse duration, jitter, pulse-to-pulse stability, beam divergence and profile
remain the same.

O P T I O N A L H A R M O N I C G E N E R ATO R A N D AT T E N U ATO R M O D U L E S
ModuleDescription

Output ports

Nanosecond
Nanosecond Lasers

Transmission inPort 1: 1064 nm beam 5–90% range at1064 nm

H300A

Attenuator for 1064 nm
beam

H300SH

Second harmonic generator

H300S

532 nm beam separator

H300SHCPort 1: 532 nm
Second harmonic generator
Port 2: residualwith 532 nm beam separator
1064 nm
Second harmonic generator,
beam separator andattenuator for 532 nm beam

H300SHAPort 1: 1064, 532 nm

Port 1: 532 nm
Port 2: residual
1064 nmThird harmonic generator,
beam separator andattenuator for 355 nm beam

H300THAPort 1: 532 nm
Port 2: residual
532 nm

H300FHA

Fourth harmonic generator,
beam separator andattenuator for 266 nm beam

H300FiHC

Fifth harmonics generator
with 213 nm beam separator

See NL300
specifications for
532 nm beamTransmission in
5–90% range at
532 nmSee NL300
specifications for
355 nm beamTransmission in
5–90% range at
355 nmPort 1: 355 nm
Port 2: residual
355 nmSee NL300
specifications for
266 nm beam

Port 1: 266 nm
Fourth harmonic generator
Port 2: residualwith 266 nm beam separator
532 nm

H300FHCn/d

See NL300
specifications for
532 nm beam

Port 1: 355 nm
Third harmonic generator
Port 2: residualwith 355 nm beam separator
1064 & 532 nm

H300THC

Outputpulse energy
specifications

Port 1: 266 nm
Port 2: residual
266 nmPort 1: 213 nm
Port 2: residual 1064,
532 & 266 nm

Transmission in
5–90% range at
266 nmSee NL300
specifications for213 nm beam

O U T L I N E D R AW I N G S

Extension
possible?

Notes

No

Integrated intoa laser head

154×160×128

Yes

154×160×128

No

154×210×128

No

154×260×128

No

154×210×128

No

Should be usedwith H300SH

154×260×128

No

Should be usedwith H300SH

154×260×128

No

Should be usedwith H300SH

154×430×128

No

Should be usedwith H300SH

154×350×128

No

Should be usedwith H300SHO R D E R I N G I N F O R M AT I O N
130

128
166

80

NL303HT

Note: Laser must be connected to the mains
electricity all the time. If there will be nomains electricity for longer that 1 hour thenlaser (system) needs warm up for a few hours
before switching on.

68

128

498
475

Dimensions
W×L×H,mm

NL303HT-10-AW-H300SH-H300THC

8350

ModelØ8Pulse repetition
rate in Hz154
175
200

50
10

Optional harmonicgenerator modules
and other accessories
Options:AW → water-air
heat exchanger

Fig 1. Typical NL300 series laser head outline drawing

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