Model LQ215-D
FEATURES
The LQ215-D is built on the basis of a laser produced for aerospace industry and combines excellent beam quality required for advanced scientific research and a highest reliability of industrial equipment.
EXCELLENT BEAM QUALITY
1064 NM OR 532 NM OUTPUT WAVELENGTH
BEAM POINTING STABILITY
DUST- AND WATER-PROOF DESIGN
RELIABILITY OF INDUSTRIAL EQUIPMENT
COMPACT SINGLE PHASE POWER SUPPLY
NO NEED FOR EXTERNAL WATER
DESCRIPTION
The design of conventional lasers generating dual pulse is based either on combining two lasers or on successive generation of nanosecond pulses by one active element during one flash lamp discharge pulse. The first solution allows to build a system with the maximum capabilities for the user but leads to increase of its cost and dimensions. The second approach allows to create low-cost and compact systems but leads to reduction of each pulse energy and of laser beam profile worsening and stability as well as limits the delay range between the pulses.
The LQ215-D design demonstrates advantages of both the variants but eliminates their disadvantages: output radiation is generated by two separate cavities while both the Nd:YAG rods are installed in one pump chamber and are pumped by one flash lamp. Both the cavities are integrated into a common laser head controlled by a common power supply that provides to the user minimum dimensions and convenience in controlling dual pulse parameters.
Original and reliable optical scheme ensures compensation of both astigmatism and thermooptical distortions and places at your disposal laser radiation of the highest quality.
One more peculiarity of the laser optical scheme is that all the components operate at loads considerably lower than the admissible values. Such a smooth operation mode not only increases life time of the components but also ensures unique operational reliability of the whole laser. As a result, you can use the LQ215-D laser for your experiments day-to-day and year-to-year having forgotten about repairs and other unpleasant operation costs.
All the laser optical components are installed on a rigid base fixed to the housing with specially developed dampers. Due to this, mechanical vibrations and housing stress no way influence the quality of the cavity alignment.
All the critical components of the laser are thermally stabilised which in combination with vibration-proof design ensures unsurpassed long-term output radiation stability. The efficient thermostats used in the LQ215-D ensure warm-up time of less than 10min.
To reduce your time expenses on routine service of the LQ215-D we provided flash lamp life time of more than 50 million pulses and foreseen easy and quick procedure of its replacement.
It should be noted that the laser design allows to replace the flash lamp without removing the laser head upper cover. Such a design concept considerably reduces risks of the optical components contamination as well as increases operational reliability of the device.
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.
Typical LQ215-D laser beam profile at 1064 nm. Near field
| MODEL | LQ215-D | ||
| Maximum PRR, Hz1) | 20 | ||
| Each pulse output energy, mJ, not less than2) | 1064 nm | 100 | |
| 532nm | 50 | ||
| Pulse duration, ns2) | 6…10 | ||
| Adjustable delay between pulses, µs | 0…80 | ||
| Step of adjustable delay between pulses, µs | 1 (0.1 – upon request) | ||
| Beam diameter, mm3) | ≤ 5 | ||
| Divergence, mrad3) | ≤ 1.5 | ||
| Pulse-to-pulse energy stability, ±%3) | < 2.5 | ||
| Beam pointing stability, mrad, not worse than3) | 0.1 | ||
| Jitter, ns4) | < 1 | ||
| Power consumption, W | ≤ 500 | ||
| Cooling system | water-to-air | ||
| Dimensions (LxWxH), mm | Laser head | 534 x 190 x 135 | |
| Power supply | 620 x 330 x 670 | ||
* Specifications are subject to change without notice.
1) The laser operates at fixed PRR stipulated on placing an order. The PRR can be from 1Hz to 20Hz. All the parameters are specified for 20Hz PRR.
2) The difference between pulse energies in the dual pulse does not exceed ± 5%.
3) At 1064 nm.
4) Relative to the Q-Switch driver external trigger pulse.
HARMONIC GENERATORS
In the standard configuration the LQ215-D laser has built-in SHG. Upon your request the SHG, THG, FHG and FiHG can be supplied as external stand-alone modules.
LG101 & LG103 External generators for Nd:YAG lasers
OPO
Upon your request the LQ215-D 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
THE LZ221 RAMAN SHIFTER
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.
IR CONVERTERS
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.
POWER ATTENUATOR
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
ARTICULATED ARM
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
If you plan to use the LQ215-D in laboratory experiments, as a bonus you will get unsurpassed operational reliability and minimisation of accompanying expenses.
If you are attracted by the reliability of the LQ215-D laser and you will use it for industrial or field applications, in addition to a highest reliability you get beam quality conventionally available only for high-precision laboratory equipment.
The LQ215-D is an ideal instrument for such applications as:
PIV (Particle Image Velocimetry)
Turbulent Flow Studies
Vortex Analysis
Spray Analysis
Combustion Studies
LIF (Laser Induced Fluorescence)
LIBS (Laser Induced Breakdown Spectroscopy)
Education
Ablation
Ti-Sapphire Lasers and OPO Pumping
Dye Lasers Pumping
Spectroscopy
LIDAR
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