PicoFlux HE series

High Energy Flash Lamp Pumped Picosecond Amplifiers

High energy PicoFlux series amplifiers are designed to produce high energy picosecond pulses at 1064 nm. High pulse energy, excellent pulse-to-pulse energy stability, superior beam quality makes these amplifiers well suited for applications like OPCPA pumping, non-linear optics and others.

Download datasheet
PicoFlux HE
Overview

Features

  • Flash lamp pumped picosecond amplifiers
  • Pulse energies up to 2.2 J
  • 20 – 300 ps pulse duration
  • 10 Hz pulse repetition rate
  • Diode pumped regenerative amplifier
  • Internal or external seeding source
  • Advanced beam shaping for high pulse energy
  • Thermally induced birefringence compensated design
  • Less than 10 ps RMS jitter synchronization pulses for streak camera triggering
  • Control through USB and LAN interfaces with supplied Windows control software (RS232 optional)
  • Vacuum image relay system
  • Optional temperature stabilized second, third and fourth harmonic generators
  • Optional extremely precise synchronization to external RF signal with PLL option
  • Optional Gaussian like spatial beam profile with Gaussian fit > 85% in near field
  • Optional reduced pulse duration to 20 ps

Applications

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

Description

High energy PicoFlux series amplifiers are designed to produce high energy picosecond pulses at 1064 nm. High pulse energy, excellent pulse-to-pulse energy stability, superior beam quality makes these amplifiers well suited for applications like OPCPA pumping, non-linear optics and others.

Regenerative amplifier / Power amplifier design

PicoFlux series amplifiers are designed to be seeded by external seeding source. Diode pumped regenerative amplifier ensures amplification of seed signal to stable mJ level pulse for amplification in linear amplifiers. Advanced beam shaping ensures smooth, without hot spots beam spatial profile at the laser output. Low light depolarization level allows high efficiency generation of up to 4th harmonic with optional build-in harmonic generators.

Alternatively Ekspla can offer an internal seeder meeting customer’s requirements.

Build-in harmonic generators

Angle-tuned non-linear crystals harmonic generators mounted in temperature stabilized heaters are used for second, third and fourth harmonic generation. Harmonic separation system is designed to ensure high spectral purity of radiation and direct it to the output ports.

Simple and convenient laser control

For customer convenience the amplifier can be controlled through USB and LAN interfaces (RS232 as optional). The amplifier can be controlled from personal computer with supplied software for Windows operating system.

Specifications

ModelPicoFlux P30010PicoFlux P60010PicoFlux P1k10PicoFlux P2k10
Main specifications 1)
Output energy
Fundamental300 mJ600 mJ1000 mJ2 200 mJ 2) 3)
SH output 4) 5)200 mJ400 mJ650 mJ1400 mJ
TH output 4)90 mJ180 mJ300 mJ660 mJ
FH output 4)30 mJ60 mJ100 mJ220 mJ
Pulse repetition rate10 Hz10 Hz10 Hz10 Hz
Pulse duration 6)90 ± 10 ps90 ± 10 ps90 ± 10 ps90 ± 10 ps
Pulse energy stability 7)
Fundamental≤ 0.6 %≤ 0.6 %≤ 0.6 %≤ 0.6 %
SH output 4)≤ 0.8 %≤ 0.8 %≤ 0.8 %≤ 0.8 %
TH output 4)≤ 2 %≤ 2 %≤ 2 %≤ 2 %
FH output 4)≤ 3 %≤ 3 %≤ 3 %≤ 3 %
Long-term power drift 8)± 2 %± 2 %± 2 %± 2 %
Beam spatial profileSuper-Gaussian 9)Super-Gaussian 9)Super-Gaussian 9)Super-Gaussian 9)
Beam diameter 10)9 mm~ 11 mm~ 17 mm~ 23 mm
Beam pointing stability 11)≤ 30 µrad≤ 30 µrad≤ 30 µrad≤ 30 µrad
Beam divergence≤ 0.5 mrad≤ 0.5 mrad≤ 0.5 mrad≤ 0.5 mrad
Pre-pulse contrast 12)> 200:1> 200:1> 200:1> 200:1
Optical pulse jitter 13)
Trig out≤ 100 ps≤ 100 ps≤ 100 ps≤ 100 ps
Pre-Trig out≤ 50 ps≤ 50 ps≤ 50 ps≤ 50 ps
With –PLL option≤ 2 ps≤ 2 ps≤ 2 ps≤ 2 ps
Polarizationlinearlinearlinearlinear
Physical characteristics 14)
Laser head size (W×L×H mm)600 × 1200 × 300600 × 1500 × 300600 × 1800 × 300900 × 1800 × 300
Power supply size (W×L×H mm)553 × 600 × 650553 × 600 × 830553 × 600 × 1230553 × 600 × 1230
Umbilical length 15)2.5 m2.5 m2.5 m2.5 m
Operating requirements 16)
Electrical power200 – 240 V AC,
single-phase, 47 – 63 Hz
200 – 240 V AC,
single-phase, 47 – 63 Hz
208, 380 or 400 V AC,
three-phase, 50/60 Hz 17)
208, 380 or 400 V AC,
three-phase, 50/60 Hz 17)
Power consumption 18)≤ 2 kVA≤ 2.5 kVA≤ 4.5 kVA≤ 7 kVA
Water supply≤ 3 l/min, 2 Bar,
max 20 °C
≤ 6 l/min, 2 Bar,
max 20 °C
≤ 12 l/min, 2 Bar,
max 20 °C
≤ 14 l/min, 2 Bar,
max 15 °C
Operating ambient temperature22 ± 2 °C22 ± 2 °C22 ± 2 °C22 ± 2 °C
Storage ambient temperature15 – 35 °C15 – 35 °C15 – 35 °C15 – 35 °C
Relative humidity (non-condensing)≤ 80 %≤ 80 %≤ 80 %≤ 80 %
Cleanness of the roomISO Class 7ISO Class 7ISO Class 7ISO Class 7
ModelPicoFlux P30010PicoFlux P60010PicoFlux P1k10PicoFlux P2k10
  1. Due to continuous improvement, all specifications are subject to change without notice. The parameters marked ‘typical’ are indications of typical performance and will vary with each unit we manufacture. Presented parameters can be customized to meet customer‘s requirements. All parameters measured at 1064 nm if not stated otherwise.
  2. 2 200 mJ energy is achieved with Super-Gaussian spatial beam profile of 11th or higher order (with steep edges). If lower order Super-Gaussian is required maximum pulse energy will be limited to 2 000 mJ.
  3. 2 500 mJ output energy is available upon request with longer pulse duration.
  4. Harmonic outputs are optional. Specifications valid with respective harmonic module purchased. Outputs are not simultaneous.
  5. Second harmonic specification is valid when only SH option is ordered. If TH/FH options are orders second harmonic efficiency is reduced to ~50 %.
  6. Standard pulse duration is 90 ps. Other pulse durations can be ordered within range of 20 ps – 300 ps. Shortening the pulse duration below 90 ps will reduce the output energy proportionally.
  7. Under stable environmental conditions, normalized to average pulse energy (RMS, averaged from 60 s).
  8. Measured over 8 hours period after 30 min warm-up when ambient temperature variation is less than ±2 °C.
  9. Super-Gaussian spatial mode of 6-11th order in near field.
  10. Beam diameter is measured at signal output at 1/e2 level for Gaussian beams and FWHM level for Super-Gaussian beams.
  11. Beam pointing stability is evaluated as movement of the beam centroid in the focal plane of a focusing element (RMS, averaged from 60 s).
  12. 1000:1 contrast available upon request.
  13. Optical pulse jitter with respect to electrical outputs:
    – Trig out > 3.5 V @ 50 Ω
    – Pre-Trig out > 1 V @ 50 Ω
    – PLL option > 1 V @ 50 Ω
  14. System sizes are preliminary and depend on customer lab layout and additional options purchased.
  15. Longer umbilical with up to 10 m available upon request.
  16. The laser and auxiliary units must be settled in such a place void of dust and aerosols. It is advisable to operate the laser in air conditioned room, provided that the laser is placed at a distance from air conditioning outlets. The laser should be positioned on a solid worktable. Access from one side should be ensured.
  17. Voltage fluctuations allowed are +10 % / -15 % from nominal value.
  18. Required current rating can be calculated by dividing power rating by mains voltage. Power rating is given in apparent power (kVA) for systems with flash lamp power supplies and in real power (kW) for systems without flash lamp power supplies where reactive power is neglectable.

Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then laser (system) needs warm up for a few hours before switching on.

Ordering information of PicoFlux HE lasers.

Ordering information of PicoFlux HE lasers.

Options

OptionDescriptionComment
-P20…300Custom pulse duration between 20 ps and 300 psAvailable with internal and external seeder. Shortening the pulse duration below 90 ps will reduce the output energy proportionally
-GGaussian like spatial beam profileReduces the output energy of fundamental by ~80 %
-FSExternal seeder input via motorized spectral broadening stageRequires > 1.5 nJ per pulse @ 800 nm, ≤ 100 fs
-PLLPhase Lock Loop option for precise lock to external RF signalElectrical to optical signal jitter ≤ 3 ps
-SH/TH/FHSecond, third and fourth harmonic outputsConversion efficiency from fundamental respectively ~50 %, ~30 % and ~10 %. Harmonic outputs not simultaneous with fundamental output
-AWWater-to-air coolingReplaces or supplements water-to-water cooling unit. Heat dissipation equals total power consumption
OptionDescriptionComment

Power supply

CabinetUsable heightHeight H,mmWidth W, mmDepth D, mm
MR-99 U455.5 (519 1) )553600
MR-1212 U589 (653 1) )553600
MR-1616 U768 (832 1) )553600
MR-2020 U889 (952 1) )553600
MR-2525 U1167 (1231 1) )553600
CabinetUsable heightHeight H,mmWidth W, mmDepth D, mm
  1. Full height with wheels.

Publications

Quantitative picosecond laser-induced fluorescence measurements of nitric oxide in flames

C. Brackmann, J. Bood, J. D. Nauclér, A. A. Konnov, and M. Aldén, Proceedings of the Combustion Institute 36 (3), 4533-4540 (2017). DOI: 10.1016/j.proci.2016.07.012.

Table top TW-class OPCPA system driven by tandem femtosecond Yb:KGW and picosecond Nd:YAG lasers

T. Stanislauskas, R. Budriūnas, R. Antipenkov, A. Zaukevičius, J. Adamonis, A. Michailovas et al., Opt. Express 22 (2), 1865-1870 (2014). DOI: 10.1364/OE.22.001865.

Emission properties of ns and ps laser-induced soft x-ray sources using pulsed gas jets

M. Müller, F. Kühl, P. Großmann, P. Vrba, and K. Mann, Opt. Express 21 (10), 12831-12842 (2013). DOI: 10.1364/OE.21.012831.

Content not found