The LQ830 is a new model of lamp-pumped Nd:YAG laser possessing unique laser radiation characteristics: linewidth of less than 0.1 cm-1, low angular divergence of less than 0.25 mrad and high pulse energy up to 700 mJ at 1064 nm.
Master oscillator with high-stability ring cavity, preamplifier and high-power amplifier form at the laser output TEM00 diffractionally limited beam with high pulse energy and Gaussian profile in the far field.
High spectral radiation brightness with linewidth not more than 10pm and high coherence length of more than 10 cm is ensured by intracavity Fabry-Perot interferometer.
All the critical components of the laser are thermally stabilised which in combination with vibration-proof design ensures unsurpassed long-term stability of output radiation. The efficient thermostats used in the LQ830 ensure warm-up time of less than 10 min.
To reduce your time expenses on routine service of the LQ830 we provided flash lamp life time of more than 30 million pulses and foreseen easy and quick procedure of its replacement.
Closed-loop water-to-air cooling system is integrated into a compact single-phase laser power supply which can be controlled both from PC and via the remote control unit.
| Model | LQ830 (1064 nm) | LQ830 (532 nm) | LQ830 (355 nm) | LQ830 (266 nm) | LQ830 (213 nm) | |
| Output energy, mJ, not less than | 1064 nm | 700 | 700 | 700 | 700 | 700 |
| 532 nm | — | 450 | 350 | 450 | 315 | |
| 355 nm | — | 300 | — | 300 | ||
| 266 nm | — | 130 | — | |||
| 213 nm1) | — | 50 | ||||
| Model | For all the models | |
| PRR, Hz | 10 | |
| Beam quality | TEM00, M2<2 | |
| Divergence, mrad2) | ≤0.25 | |
| Beam diameter, mm2) | 9±0.5 | |
| Output linewidth, cm-1, not more than2) | 1 | |
| Output linewidth with interferometer, cm-1, not more than2) | 0.1 | |
| Pulse duration, ns2), 3) | 6…9 | |
| Beam pointing stability, µrad, not worse than2) | horizontal plane vertical plane |
±6 ±20 |
| Pulse-to-pulse energy stability, ±%2) | ≤ 2 | |
| Jitter, ns3), 4) | ± 1 | |
| Power consumption, W | ≤ 1000 | |
| Cooling system | water-to-air | |
| Dimensions (LxWxH), mm | Laser head | 650 x 324 x 119 |
| Power supply | 700 x 366 x 693 | |
* Specifications are subject to change without notice.
1) With the LG105 external fifth harmonic generator.
2) At 1064 nm.
3) Without the interferometer.
4) Relative to the Q-Switch driver external trigger pulse.
Dimensions of the LQ830 laser head
Dimensions of the LQ830 power supply
In the standard configuration the LQ830 laser has built-in SHG, THG and FHG. However, upon your request the harmonic generators can be supplied as external stand-alone modules. FiHG is available only as an external unit.
LG101 & LG103 External generators for Nd:YAG lasers
Upon your request the LQ830 laser can be supplemented with an optical parametric oscillator of the LP600 series. In such a combination you will have a source of continuously tuneable laser radiation within a wide spectral range (from UV to IR).
Optical Parametric Oscillator for Nd:YAG lasers
Compact and easy to adjust and operate Raman shifter efficiently converts 1064 nm or 532 nm output radiation into several additional laser lines within the visible and IR range.
The IR converters are very compact devices with built-in OPO operating in the NCPM mode. The range of IR converters are laser sources providing fixed output wavelengths from 1.5 µm to 3.5 µm.
The laser can be supplemented with a variable power attenuator. Upon your choice it can be either a unit optimised for operation at one wavelength or an achromatic attenuator intended for simultaneous attenuation of all the laser harmonics from 266 nm to 1064 nm.
Attenuator of high-power laser radiation
A number of applications require quick and flexible laser beam delivery to the research object or the place of measurements. For this an optical fiber can be used but only for delivery of low pulse energy radiation (5-20 mJ). To deliver high-power radiation we offer to supplement the laser with a mirror articulated arm. To minimise losses of laser pulse energy we use special dielectric mirrors with high reflection coefficient simultaneously for 1064 nm and 532 nm.
Nd:YAG laser with mirror articulated arm
The LQ830 laser is an ideal instrument for various applications requiring laser radiation with high spectral and angular brightness, such as:
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