NL120 series electro-optically Q-switched nanosecond Nd:YAG lasers deliver up to 10 J per pulse with excellent stability. The innovative, diode‑pumped, self‑seeded master oscillator design results in Single Longitudinal Mode (SLM) output without the use of external expensive narrow linewidth seed diodes and cavity‑locking electronics. Unlike more common designs that use an unstable laser cavity, the stable master oscillator cavity produces a TEM₀₀ spatial mode output that results in excellent beam properties after the amplification stages.
NL120 series Q-switched nanosecond lasers are an excellent choice for many applications, including OPO, OPCPA or dye laser pumping, holography, LIF spectroscopy, remote sensing, optics testing and other tasks. For tasks that require a smooth and as close as possible to the Gaussian beam profile, models with improved Gaussian fit are available.
The low jitter of the optical pulse with respect to the Q-switch triggering pulse allows the reliable synchronization between the laser and external equipment.
The optional second (SH) (for 532 nm), third (TH) (for 355 nm) and fourth (FH) (for 266 nm) harmonics generators provide access to shorter wavelengths.
The laser is controlled by a supplied netbook PC via USB port with application for Windows™ operating system. In addition, the main settings of the laser can be controlled through an auxiliary remote control pad. The remote pad features a backlit display that is easy to read even when wearing laser safety eyewear.
|MAIN SPECIFICATIONS 1)|
|Pulse energy 2)|
|at 1064 nm||1600 mJ||5000 mJ||10000 mJ|
|at 532 nm 4)||700 mJ||TBA 3)|
|at 355 nm 5)||450 mJ||TBA 3)|
|at 266 nm 6)||140 mJ||TBA 3)|
|Pulse energy stability (StdDev) 7)|
|at 1064 nm||<1 %|
|at 532 nm 4)||<2 %|
|at 355 nm 5)||<3 %|
|at 266 nm 6)||<5 %|
|Pulse duration at 1064 nm (FWHM) 8)||2 ± 0.5 ns|
|Pulse repetition rate||10 Hz|
|Linewidth||≤0.02 cm⁻¹ (SLM)|
|Polarization at 1064 9)||linear, >90 %|
|Optical pulse jitter (StdDev) 10)||<0.2 ns|
|Beam spatial profile 11)||Hat-Top, >70 % fit|
|Typical beam divergence 12)||<0.5 mrad|
|Beam pointing stability 13)||<25 μrad|
|Typical beam diameter 15)||~12 mm||~20 mm||~27 mm|
|Laser head size (W × L × H)||455 × 1220 × 270 mm||600 x 1500 x 300 mm||600 x 2000 x 300 mm|
|Power supply size (W × L × H)||550 × 600 × 1030 mm||550 x 600 x 1030 mm 2 units||550 x 600 x 1650 mm 2 units|
|Umbilical length||2.5 m|
|Water consumption |
(max 20 °C)
|Ambient temperature||18 – 27 °C|
|Relative humidity||10 – 80 % (non-condensing)|
|Power requirements 15)||208 or 380 V AC, three-phase 50/60 Hz|
|Power consumption 17)||< 5 kVA||< 8 kVA||< 10 kVA|
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.
For applications requiring longer pulse duration the laser master oscillator cavity can be modified to produce 7 or 25 ns pulses. Note: some of other specifications can be changed. Please contact Ekspla for detailed datasheets.