|문의||김길석박사, 하윤미과장 (02-3461-1103)|
The NL230 series diode-pumped Q-switched lasers produce up to 150 mJ at 100 Hz or up to 190 mJ at 50 Hz pulse repetition rate. Diode pumping allows maintenance-free laser operation for an extended period of time (more than 3 years for an estimated eight working hours per day). The typical pump diode lifetime is more than 1 billion shots.
Lasers are designed to produce high-intensity, high-brightness pulses and are targeted for applications such as material ablation, remote sensing, OPO, Ti:Sapphire or dye laser pumping. Due to an electro‑optical Q-switch, the master oscillator generates short duration pulses in the 3 – 7 ns range. The oscillator cavity optical design features a variable‑reflectivity output coupler, giving a low-divergence laser beam.
A closed-loop chiller is used for laser cooling, eliminating the need for external cooling water and reducing running costs.
Angle-tuned non-linear crystals mounted in temperature stabilized heaters are used for optional second or third harmonic generation. The harmonic separation system is designed to ensure radiation with a high spectral purity and to direct it to the separate output ports.
For customer convenience the laser can be controlled via a remote control pad or a USB interface. The remote pad allows easy control of all parameters and features a backlit display that is easy to read even through laser safety eyewear. Alternatively, the laser can be controlled from a personal computer via supplied Windows™ compatible software. LabVIEW™ drivers are also included with each laser installation package.
|MAIN SPECIFICATIONS 1)|
|Pulse energy (not less than) 2)|
|at 1064 nm||190 mJ||150 mJ|
|at 532 nm 3)||110 mJ||90 mJ|
|at 355 nm 4)||55 mJ||40 mJ|
|Pulse energy stability (StdDev) 5)|
|at 1064 nm||<1 %|
|at 532 nm||<2.5 %|
|at 355 nm||<3.5 %|
|Pulse repetition rate||50 Hz||100 Hz|
|Power drift 6)||< ±1 %|
|Pulse duration 7)||3 – 7 ns|
|Linewidth||<1 cm-1 at 1064 nm|
|Beam profile 8)||"Top Hat" in near field and close to Gaussian in far field|
|Beam divergence 9)||<0.8 mrad|
|Beam pointing stability 10)||≤60 µrad rms|
|Polarization||linear, >95% at 1064 nm|
|Typical beam diameter 11)||5 mm|
|Optical pulse jitter|
|Internal triggering regime 12)||<0.5 ns rms|
|External triggering regime 13)||<0.5 ns rms|
|SYNC OUT pulse delay||-100 µs ... 100 ms|
|Typical warm-up time||5 min|
|Laser head size (W × L × H)||221 × 425 × 162 mm ± 3 mm|
|Power supply unit (W × L × H)|
|Desktop case||471×391×147 mm ± 3 mm|
|19" module||483×355×133 mm ± 3 mm|
|External chiller (where applicable)||inquire|
|Umbilical length||2.5 m|
|Cooling (air cooled)14)||external chiller|
|Ambient temperature||18 – 27 °C|
|Relative humidity (non-condensing)||20 – 80 %|
|Power requirements||100 – 240 VAC, single phase, 50/60 Hz|
|Power consumption||<1 kVA|
Notes: 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. Intensive sources of vibration should be avoided near the laboratory (ex. railway station or similar).
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.