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TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt
Telefon: +49 6151 4259 78
Telefax: +49 6151 4259 88 
E- mail: info [at] 

PL2230 - Serie, DPSS

PL2230 - Serie, DPSS Nd:YAG Laser


Die Laser der PL2230 Serie sind vollständig diodengepumpte modengekoppelte Hochenergie-Laser und besitzen einen diodengepumpten Oszillator in Kombination mit diodengepumptem regenerativem sowie End-Verstärker. Eine gelungene Synthese aus höchster Strahlqualität und Stabilität eines DPSS-Oszillators und diodengepumpten Verstärkerstufen mit beachtlichen Leistungsdaten (z.B. 40mJ/50Hz/28ps).


Bezeichnungen der Tabs

  • Beschreibung
  • Spezifikationen
  • Optionen
  • Bilder
Tab 1


  • Hermetically sealed DPSS master oscillator
  • Diode pumped regenerative amplifier
  • Diode pumped power amplifier producing up to 40 mJ per pulse at 1064 nm
  • Air-cooled
  • <30 ps pulse duration
  • Excellent pulse duration stability
  • Up to 50 Hz repetition rate
  • Streak camera triggering pulse with <10 ps jitter
  • Excellent beam pointing stability
  • Thermo stabilized second, third or fourth harmonic generator options
  • PC control trough USB and with supplied LabView™ drivers
  • Remote control via keypad


  • Time resolved spectroscopy
  • SFG/SHG spectroscopy
  • Nonlinear spectroscopy
  • OPG pumping
  • Remote laser sensing
  • Satellite ranging
  • Other spectroscopic and nonlinear optics applications

Ekspla is proud to introduce the irst commercial fully diode pumped high pulse energy mode-locked laser, producing 28 ps pulses with up to 40 mJ at 50 Hz pulse repetition rate.

Innovative design

The heart of the system is a diode pumped solid state (DPSS) master oscillator placed in a sealed monolithic block, producing high repetition rate pulse trains (88 mHz) with a low single pulse energy of several nJ. Diode pumped ampliiers are used for ampliication of the pulse to 40 mJ output. The high-gain regenerative ampliier has an ampliication factor in the proximity of 10⁶. After the regenerative ampliier, the pulse is directed to a multipass power ampliier that is optimized for eficient stored energy extraction from the Nd:YAG rod, while maintaining a near Gaussian beam proile and low wavefront distortion.

The output pulse energy can be adjusted in approximately 1% steps, while pulse-to-pulse energy stability remains at less than 0.5% rms at 1064 nm. Angle-tuned KD*P and KDP crystals mounted in thermostabilised ovens are used for second, third, and fourth harmonic generation. Harmonics separators ensure the high spectral purity of each harmonic guided to different output ports. Built-in energy monitors continuously monitor output pulse energy. data from the energy monitor can be seen on the remote keypad or on a Pc monitor. The laser provides triggering pulses for the synchronisation of your equipment. The lead of the triggering pulse can be up to 500 ns and is user adjustable in ~0.25 ns steps from a personal computer. if required, up to 1000 μs lead of triggering pulse is available when a PRETRIG option is installed. Precise pulse energy control, excellent short-term and long-term stability, and a 50 Hz repetition rate makes PL2230 series lasers an excellent choice for many demanding scientiic applications.

Simple and convenient laser control

For customer convenience the laser can be controlled through a user‑friendly remote control pad or USB interface.

The remote pad allows easy control of all parameters and features a back‑lit display that is easy to read even with laser safety eye-wear. Alternatively, the laser can be controlled from a personal computer with supplied software for a Windows™ operating system. LabView™ drivers are supplied as well.

Tab 2
Specifications 1)

Pulse energy
at 1064 nm 40 mJ
at 532 nm2) 18 mJ
at 355 nm3) 12 mJ
at 266 nm4) 5 mJ
at 213 nm5) 2 mJ
Pulse energy stability (Std. Dev) 6)
at 1064 nm < 0.5 %
at 532 nm < 0.8 %
at 355 nm < 1.1 %
at 266 nm < 1.2 %
at 213 nm < 2.5 %
Pulse duration (FWHM) 7) 28±10 %
Pulse duration stability 8) ± 1.0 %
Max pulse repetition rate 9) 10)
50 Hz
Polarization linear, vertical, > 100:1
Pre-pulse contrast > 200:1
Triggering mode internal/external
SYNC OUT pulse jitter 11) < 0.1 ns
SYNC OUT pulse delay 12) -500...50 ns
Beam divergence 13) < 0.7 mrad
Beam pointing stability 14) < 15 µrad
Beam diameter 15) ~6 mm
Typical warm-up time 10 min
Physical characteristics
Laser head size (W x L x H) 456 x 1031 x 249 mm
Electric cabinet size (W x L x H) 471 x 391 x 147 mm
Umbilical length 2.5 m
Operating requirements
Cooling 16) built-in chiller
Room temperature 22±2 °C
Relative humidity (non-condensing) 20-80 %
Power requirements 110-240 V AC, 50/60 Hz
Power consumption < 0.5 kVA

1) Due to continuous improvement, all speciications are subject to change without notice. For latest product information please visit EKSPLA. The parameters marked typical are not speciications. They are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise all speciications are measured at 1064 nm.

2) For -SH option. Outputs are not simultaneous. Please inquire for pulse energies at other wavelengths.

3) For -TH option. Outputs are not simultaneous. Please inquire for pulse energies at other wavelengths.

4) For -FH option. Outputs are not simultaneous. Please inquire for pulse energies at other wavelengths.

5) For -FiH option. Outputs are not simultaneous. please inquiry for pulse energies at other wavelengths. FiH option is supplied in separate harmonics unit.

6) Averaged from pulses, emitted during 30 sec time interval.

7) Inquire for optional pulse durations in 20 – 100 ps range.

8) Measured over 1 hour period when ambient temperature variation is less than ±1 °C.

9) Fixed pulse repetition rate should be speciied when ordering. Inquire for variable pulse repetition rates.

10) 100 Hz repetition rate version is available. Please contact Ekspla for more information.

11) <10 ps jitter is provided with PRETRIG option.

12) SYNC OUT lead or delay can be adjusted with ~0.25 ns steps in specied range.

13) Average of X- and Y-plane full angle divergence values measured at the 1/e² level at 1064 nm.

14) RMS value measured from 200 shots.

15) Beam diameter is measured at 1064 nm at the 1/e² level.

16) Adequate room air conditioning should be provided.


Tab 3
  • Option PRETRIG provides low jitter <10 ps pulse for streak camera triggering
  • Option P20 provides 20 ps ±2 % output pulse duration. Pulse energies are 30 % lower in comparison to the 30 ps pulse duration version.
  • Option P80 provides less than 80 ps ± 10 % output pulse duration. Pulse energy specifications are 50 % higher in comparison to the 30 ps pulse duration version.
  • Option PLL allows locking the master oscillator pulse train repetition rate to an external RF generator, enabling precise external triggering with low jitter. inquire for more information.
Tab 4

Tab 4 Inhalt

Tab 5
Bild 1
Beschreibung 1
PL2230 series high energy full DPSS mode-locked Nd:YAG lasers 
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Beschreibung 2
Typical PL2230 series laser output beam profile
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Beschreibung 3
PL2230 series laser head outline drawing 
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