ANL Nd:Glass series
datasheet
- Up to 80 J from a single channel
- Pulse durations from 100 ps to 20 ns
- Spatial Super-Gaussian beam profile
- Second and third harmonics generators
- Up to 80 J from a single channel
- Pulse durations from 100 ps to 20 ns
- Spatial Super-Gaussian beam profile
- Second and third harmonics generators
Features & Applications
Features
- Up to 80 J from a single channel
- Pulse durations from 100 ps to 20 ns
- Spatial Super-Gaussian beam profile
- Front-end options:
– Diode pumped single-mode (SLM) or multi-mode (MM) master oscillator featuring excellent stability, long lifetime and maintenance-free operation based on Nd:Glass or Nd:YLF
– Temporally shaped seeder / regenerative amplifier configuration allowing application of smoothing technics
– Wave front correction system based on deformable mirror (DFM) - Flash lamp / LD pumped pre-amplifier
- Up to Ø60 mm aperture Nd:Glass power amplifiers
- Laser protection by Faraday isolators preventing damage of laser rods by back-reflected light
- Optimized design for maximum pulse energy extraction
- Separately controlled PFN circuits for each flash lamp
- Diagnostics and monitoring of system status based on microprocessor controller
- Software guide for step-by-step performance check at designated control points
- Optional second and third harmonics generators
Applications
- OPCPA pumping
- Thomson Scattering
- Multi-stage OPCPA pumping
- Non-linear optics
- Ti:S pumping
- Plasma and shock physics
Description
Ekspla offers wide range of high energy Nd:Glass laser systems. Typically Nd:Glass lasers comprise of diode pumped master oscillator, pre-amplifier, pulse shaper and main lamp pumped amplifiers.
Different types of front end options are available – a diode pumped SLM or MM master oscillator featuring excellent stability, long lifetime and maintenance-free operation based on Nd:glass or Nd:YLF. Also, Temporally shaped seeder / regenerative amplifier configuration allowing application of smoothing technics. Wave front correction system based on DFM is possible to implement as well.
Power amplifiers are a chain of low-maintenance flash lamp pumped single and double pass amplifiers where pulses are amplified up to the required energy. During amplification, spatial beam shaping is employed in order to get a Super-Gaussian spatial shape at the output.
Angle-tuned non-linear crystals harmonic generators mounted in temperature stabilized heaters are used for second and third harmonic generation. Harmonic separation system is designed to ensure high spectral purity of radiation and direct it to the output ports.
System control is available through control pad, USB and LAN interfaces (RS232 as optional). The system can be controlled from personal computer with supplied software for Windows operating system.
Specifications
| Model | ANL25kSS-AWG | ANL80kSS-AWG | ANL160kSS-AWG |
|---|---|---|---|
| MAIN SPECIFICATIONS 1) | |||
| Center wavelength | 1053 nm | ||
| Output energy 2) | |||
| at 1053 nm | 25 J | 80 J | 160 J ( 2 × 80 J ) 3) |
| at 527 nm 4) | 15 J | 50 J | 100 J |
| at 351 nm 4) | 7 J | 25 J | 50 J |
| Pulse repetition rate 5) | 1 shot every 5 min | 1 shot every 20 min | |
| Pulse duration 6) | 0.15 – 20 ns | ||
| Pulse energy stability 7) | ≤ 5.0 % | ||
| Beam spatial profile 8) | Super-Gaussian | ||
| Beam diameter 9) | 40 mm | 60 mm | 60 mm |
| Beam pointing stability 10) | ≤ 30 µrad | ||
| Optical pulse jitter 11) | ≤ 50 ps | ||
| Output isolation from Back-reflected light 12) | > 500 : 1 | ||
| Pre-pulse contrast 13) | > 1000 : 1 | ||
| Polarization contrast | > 100 : 1 | ||
| Polarization | Linear | ||
| PHYSICAL CHARACTERISTICS 14) | |||
| Laser head size (W×L×H mm) | 1500 × 2000 × 560 | 1200 × 3600 × 560 | 2 × (1200 × 2400 × 560) |
| Power supply size (W×L×H mm) | 553 × 600 × 653 553 × 800 × 1745 | 2 × (550 × 800 × 1940) 2 × (550 × 800 × 670) | 2 × (550 × 800 × 1940) 2 × (550 × 800 × 670) |
| Umbilical length | 10 m | ||
| OPERATING REQUIREMENTS 15) | |||
| Power requirements 16) | 208, 380 or 400 V AC, three phases, 50/60 Hz | ||
| Power consumption 17) | 1 kW | 1 kW | 2 kW |
| Water supply 17) | 5 l/min, 2 Bar, max 15 °C | 10 l/min, 2 Bar, max 15 °C | |
| Operating ambient temperature | 22 ± 2 °C | ||
| Storage ambient temperature | 15 – 35 °C | ||
| Relative humidity (non-condensing) | ≤ 80 % | ||
| Cleanness of the room | ISO Class 7 | ||
- 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.
- The output energies are measured at 5 ns, rectangular pulse at time domain, FWHM.
- The 160 J energy output is combined of two 80 J channels with vertical and horizontal polarizations.
- Harmonic outputs are optional. Specifications valid with respective harmonic module purchased. Outputs are not simultaneous.
- In service or low energy modes the time between shots can be reduced by half or more.
- Variable pulse duration in steps of 125 ps. Pulse shaping is possible in the range of 1 – 20 ns.
- Under stable environmental conditions, normalized to average pulse energy (RMS, averaged from 10 shots).
- Super-Gaussian spatial mode of 6-11th order in near field.
- Beam diameter is measured at signal output at 1/e2 level for Gaussian beams and FWHM level for Super-Gaussian beams.
- Beam pointing stability is evaluated as movement of the beam centroid in the focal plane of a focusing element (RMS, averaged from 10 shots).
- Optical pulse jitter with respect to electrical outputs. ≤ 50 ps – with AWG oscillator. ≤ 0.2 ns – with SLM oscillator. ≤ 10 ps – optional
Faraday isolator contrast. - Contrast up to 104 : 1 available upon request.
- System sizes are preliminary and depend on customer lab layout and additional options purchased.
- 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.
- Voltage fluctuations allowed are +10 % / -15 % from nominal value.
- Power consumption and water supply requirements deviate depending on system configuration.
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.
Options
| Option | Description | Comment |
|---|---|---|
| - AWG | Arbitrary waveform generator | Temporal pulse shape control in 1 – 10 ns range by 125 ps step |
| - Back reflection protection | Protects the system’s optical elements from an accidental back reflection | Ø45 mm Faraday isolator with additional optics |
Performance
Drawings
Power Supply
| Cabinet | Usable height | Height H, mm | Width W, mm | Depth D, mm |
|---|---|---|---|---|
| MR-9 | 9 U | 455.5 (519 1) ) | 553 | 600 |
| MR-12 | 12 U | 589 (653 1) ) | 553 | 600 |
| MR-16 | 16 U | 768 (832 1) ) | 553 | 600 |
| MR-20 | 20 U | 889 (952 1) ) | 553 | 600 |
| MR-25 | 25 U | 1167 (1231 1) ) | 553 | 600 |
| MR-34 | 34 U | 1640 (1709 1) ) | 553 | 600 |
| MR-38 | 38 U | 1745 (1810 1) ) | 553 | 800 |
- Full height with wheels.
