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EO Q-switched Nd:YAG Laser

1064nm, 532nm, 355nm, 266nm option
Energy up to 10J at 10Hz 1064nm
Repetition rate up to 30Hz
High reliability and stability

Brief Description: STGR Series Super-Gaussian Resonator series Q-Switched Nd:YAG lasers combine VRM (variable reflectivity mirror) with unstable resonator design creating a cavity with large TEM00 mode volume for excitation and energy extraction. A “flat-top-hat” can be specified with uniform energy distribution or “VRM Gaussian” profiles

PRODUCT DESCRIPTION

STBT-GR Series Q-Switched Nd:YAG Laser

STGR Series Super-Gaussian Resonator series Q-Switched Nd:YAG lasers combine VRM (variable reflectivity mirror) with unstable resonator design creating a cavity with large TEM00 mode volume for excitation and energy extraction. A “flat-top-hat” can be specified with uniform energy distribution or “VRM Gaussian” profiles.

STGR Series close-coupled diffuse pump chamber delivers uniform pumping of the laser rod for optimum lasing excitation efficiency and allows for higher stored energy by eliminating parasitic oscillations within the pump chamber. The pump chamber uses chemically inert materials to withstand high pumping energy and absorb unwanted UV and IR radiation emitted by the flash lamps. One or more amplifiers can be added to the oscillator for higher energy output. With scientific or industrial grade models available, the STGR series will fit right in with your scientific research, medical or OEM industrial application.

Features:

-> 1064nm, 532nm, 355nm, 266nm option

-> Energy up to 10J at 10Hz 1064nm

-> Repetition rate up to 30Hz

-> VRM mode

-> High reliability and stability

-> Superior beam quality

-> Compact design

-> Easy to use

-> Analog or digital remote controller

Applications:

->Photo chemistry

->Molecular chemistry

->Non-linear optics

->Laser illumination

->LIDAR

->Laser cleaning

->Laser ablation

->Optical remote sensing

->LIF (Laser Induces Florescence)

->PLD (Pulsed Laser Deposition)

Technical Specifications:

		STGR-10	STGR-20	STGR-60	STGR-EXTRA	STGR-OPO
Repetition Rate (Hz)		1-20	1-20	1-10	1-10	Same as pumping source
Tunable		NA	NA	NA	NA	410-2200nm OPO SHG Option
Energy (mJ)^*1	1064nm	1000	2000	6J	6-10J	20mJ@Peak
	532nm	500	1000	3J	3-5J	20mJ@Peak
	355nm	200	400	Option	Option	20mJ@Peak
	266nm	80	150	Option	Option	20mJ@Peak
Beam Diameter (mm) ^*2		9	10	20	22	3-4
Spatial Profile:^*3	Near Field	>70%	>70%	>70%	>70%	NA
Spatial Profile:^*3	Far Field	>90%	>90%	>90%	>90%	NA
Divergence (mrad) ^*4		<=0.5	<=0.5	<=0.5	<=0.5	Vertical: ~2 Horizontal:~10
Energy Stability (RMS) ^*5		2-3%	2-3%	2-3%	2-3%	10%
Pulse Duration (ns)^*6		~8	~8	~10	~10	3-5

*1. Maximum output energy optimum repetition rate
*2. Beam diameter at the output
*3. Fit to Gaussian
*4. Full angle for 86% energy
*5. The RMS stability at 1064nm, 2%>@532nm, 4%>@355nm or 266nm
*6. FWHM (Full Width Half Maximum) at 1064nm, 1-2ns<@532nm, 3-4ns<@355nm or 266nm
Specifications are subject to change without prior notice.

STLQ series Nd:YAG Pulsed Lasers

Compact Air-cooled Nd:YAG Laser Model STLQ115

Up to 90mJ @ 1064nm and built in harmonic generators 532nm, 355nm, 266nm

FEATURES:
-> No cooling water required
-> Compact & rigid design
-> Excellent beam profile
-> Continuous operation mode
-> Built-in harmonics
-> Turn-key operation
-> Remote control

The STLQ115 is an ultra-compact model of air-cooled Nd:YAG laser for applications requiring compact and undemanding laser source.

Due to application of original high-efficiency heat exchanger the STLQ115 laser unlike most air-cooled laser models can work continuously with PRR up to 3Hz and cyclically with PRR up to 5Hz. The above operating modes are realised at output energies conventionally attained at water-cooled lasers.

The STLQ115 laser provides up to 90mJ output pulse energy at the fundamental with possibility of further conversion of IR radiation into the second harmonic as well as into the third or fourth harmonic.

All the harmonic generators are built-in and temperature stabilised. This peculiarity together with optimised rigid laser head design ensures output radiation long-term stability comparable to that of standard laboratory lasers.

Unlike most compact lasers using DKDP-based Pockels cells, the STLQ115 incorporates LiNbO3 electrooptical Q-Switch. Such Q-Switch is not hygroscopic and retains its parameters within a wide temperature range and ensures reliable and stable laser operation.

Dust-proof laser head design allows to align main optical components without removing the cover that increases their life in the field.

To reduce your time expenses on routine service of the STLQ115 laser we use only long lifetime flash lamps by Heraeus Noblelight Ltd. Besides, the flash lamp replacement procedure is elementarily easy even for a unskilled user.

Absence of water cooling system gives to the STLQ115 laser a number of essential operational advantages:
-> Footprint of both the laser head and power supply is considerably reduced.
-> Integration of the laser into different mobile systems is facilitated.
-> Technical reliability of the device operation is increased.
-> Operating costs are reduced.

Model		STLQ115 (1064 nm)			STLQ115 (532 nm)			STLQ115 (355 nm)			STLQ115 (266 nm)
PRR, Hz		1	2	3	1	2	3	1	2	3	1	2	3
Output energy, mJ, not less than	1064 nm	90	90	75	90	90	75	90	90	75	90	90	75
	532 nm	-			45	40	30	35	30	22	45	40	30
	355 nm				-			20	20	15	-
	266 nm							-			6	5	4
Pulse-to-pulse energy stability, ±% ¹⁾		3	3.5	4.5	3	3.5	4.5	3	3.5	4.5	3	3.5	4.5
Pulse duration, ns ¹⁾		5…9
Beam diameter, mm ¹⁾		≤ 4.5
Divergence, mrad ¹⁾		≤ 3
Jitter, ns ²⁾		≤ 3.5
Power consumption, W		≤ 200
Dimensions (LxWxH), mm	Laser head	410 x 125 x 130
	Power supply	320 x 370 x 150

* Specifications are subject to change without notice.
1) At 1064 nm.
2) Relative to the Q-Switch driver external trigger pulse.

Compact Nd:YAG Laser Model STLQ215

Up to 180mJ @ 1064nm and harmonic generators up to 213nm

FEATURES:
-> Excellent beam quality
-> Built-in harmonic generators up to 213 nm
-> Dust- and water-proof design
-> Reliability of industrial equipment
-> Compact single phase power supply
-> No need for external water

The STLQ215 laser is built on the basis of a model produced for aerospace industry and combines excellent beam quality required for advanced scientific research with a highest reliability of industrial equipment.

Original and reliable optical scheme ensures compensation of both astigmatism and thermooptical distortions and places at your disposal laser radiation of the highest quality.

STLQ215 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 STLQ215 ensure warm-up time of less than 10min.

To reduce your time expenses on routine service of the STLQ215 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 technical solution 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.

If you plan to use the STLQ215 in laboratory experiments, as a bonus you will get unsurpassed operational reliability and minimization of accompanying expenses.

If you are attracted by the reliability of the STLQ215 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 STLQ215 is an ideal instrument for such applications as:
-> Ti:Sapphire Lasers and OPO Pumping
-> Dye Lasers Pumping
-> Spectroscopy
-> LIDAR
-> LIF (Laser Induced Fluorescence)
-> LIBS (Laser Induced Breakdown Spectroscopy)
-> Education
-> PIV (Particle Image Velocimetry)
-> Range-Finding
-> Ablation
-> Marking
-> TFT-LCD Repair
-> Flat Panel Display (FPD) Manufacturing

Model		STLQ215 (1064 nm)		STLQ215 (532 nm)		STLQ215 (355 nm)		STLQ215 (266 nm)		STLQ215 (213 nm)
PRR, Hz		10	20	10	20	10	20	10	20	10	20
Output energy, mJ, not less than	1064 nm	180		180		180		180		180
	532 nm	-		100		80		100		80
	355 nm (HPV)¹⁾			-		60	60	-		60	60
	355 nm					50	45			50	45
	266 nm					-		35		-
	213 nm (HPV) ^{1), 2)}							-		8	6
	213 nm ²⁾									6	5
Pulse-to-pulse energy stability, ±% ³⁾		< 2.5
Pulse duration, ns ³⁾		6…10
Beam diameter, mm³⁾		≤ 5
Divergence, mrad ³⁾		≤ 1.5
Jitter, ns ⁴⁾		≤ 1.5
Power consumption, W		≤ 500
Cooling system		water-to-air
Dimensions (LxWxH), mm	Laser head	455 x 165 x 140
	Power supply	620 x 330 x 670

1) For the high-power version at 355 nm.
2) With the LG105 external fifth harmonic generator.
3) At 1064 nm.

4) Relative to the Q-Switch driver external trigger pulse.

Dual-Pulse Compact Nd:YAG Laser Model STLQ215-D

Up to 100mJ @ 1064nm and 50mJ @ 532nm in each pulse

FEATURES
-> 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

The STLQ215-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.

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 STLQ215-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 STLQ215-D laser for your experiments day-to-day and year-to-year having forgotten about repairs and other unpleasant operation costs.

To reduce your time expenses on routine service of the STLQ215-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.

Model		STLQ215-D
Maximum PRR, Hz ¹⁾		20
Each pulse output energy, mJ, not less than²⁾	1064nm	100
	532nm	50
Pulse duration, ns ²⁾		6…10
Adjustable delay between pulses, μs		0…80
Step of adjustable delay between pulses, μs		1 (0.1 – upon request)
Beam diameter, mm ³⁾		≤ 5
Divergence, mrad ³⁾		≤ 1.5
Pulse-to-pulse energy stability, ±% ³⁾		< 2.5
Beam pointing stability, mrad, not worse than ³⁾		0.1
Jitter, ns ⁴⁾		< 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.

Pulsed Nd:YAG Laser Model STLQ529

Up to 500mJ at 1064nm and harmonic generators up to 213nm

FEATURES:
-> High PRR
-> High pulse energy up to 0.5 J
-> Excellent beam quality
-> All harmonics available up to 213 nm
-> Compact single-phase power supply
-> No external water requirements

The STLQ529 is a series of popular compact lamp-pumped Nd:YAG lasers offering uncompromising combination of the main parameters: high output power, exceptional beam quality and minimum laser head and power supply dimensions.

All the lasers of the STLQ529 series are based on ring cavity and incorporate a pump chamber with diffuse ceramic reflector. Due to this technical solution the STLQ529 lasers, unlike the lasers with traditional linear cavity, provide homogeneous close to flat-top laser beam profile and possess exceptional stability of output energy and spatial radiation parameters. Beam pointing stability of the STLQ529 is better than 20 μrad in the vertical plane and 80 μrad in the horizontal plane.

To reduce your time expenses on routine service of the STLQ529 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		STLQ529B (1064 nm)	STLQ529B (532 nm)	STLQ529B (355 nm)		STLQ529B (266 nm)		STLQ529B (213 nm)
Output energy, mJ, not less than	355 nm (HPV) ¹⁾	-	-	100	100	-		100	100
	355 nm			90	80	-		90	80
	266 nm			-		60	40	-
	213 nm (HPV)^{1), 2)}					-		18	15
	213 nm ²⁾							15	12
Beam diameter, mm ³⁾		≤ 6
Power consumption, W		≤ 800

Model		STLQ529C (1064 nm)	STLQ529C (532 nm)	STLQ529C (355 nm)	STLQ529C (266 nm)	STLQ529C (213 nm)
Outputenergy, mJ, not less than	1064 nm	150	150	150	150	150
	532 nm	-	80	65	80	65
	355 nm		-	40	-	40
	266 nm			-	20	-
	213 nm ²⁾				-	4.5
PRR, Hz		50
Beam diameter, mm³⁾		≤ 5
Power consumption, W		≤ 1000
Pulse-to-pulse energy stability, ±% ²⁾		< 2.5
Pulse duration, ns ³⁾		10…13
Divergence, mrad³⁾		≤ 1.5
Jitter, ns ⁴⁾		≤ 1
Cooling system		water-to-air
Dimensions (LxWxH), mm	Laser head	615 x 180 x 120
	Power supply	620 x 330 x 670

* Specifications are subject to change without notice.
1) For the high-power version at 355 nm.
2) With the STLG105 external fifth harmonic generator.
3) At 1064 nm.
4) Relative to the Q-Switch driver external trigger pulse.

100 Hz Nd:YAG Laser Model STLQ629

Up to 200mJ @ 1064nm and harmonic generators up to 213nm

FEATURES:
-> High PRR
-> High pulse energy
-> Excellent beam quality
-> All harmonics available up to 213 nm
-> Compact single-phase power supply
-> No external water requirements

The combination of high laser pulse energy, high PRR and excellent beam quality unattainable for most conventional models is the peculiarity of the STLQ629 laser.

Active elements of master oscillator and amplifier are installed in one pump chamber and are pumped by a single flash lamp. The master oscillator is based on the time-proven ring cavity design ensuring excellent beam quality while the classical single-pass amplifier is supplemented with the optics compensating thermooptical aberrations.

Particularly due to this technical solution the STLQ629 provides unique combination of parameters in a compact, reliable and inexpensive-in-operation design.

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 STLQ629 ensure warm-up time of less than 10min.

To reduce your time expenses on routine service of the STLQ629 we provided flash lamp life time of more than 50 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		STLQ629 (1064 nm)	STLQ629 (532 nm)	STLQ629 (355 nm)	STLQ629 (266 nm)	STLQ629 (213 nm)
Output energy, mJ, not less than	1064 nm	200	200	200	200	200
	532 nm	-	90	80	90	80
	355 nm		-	50	-	50
	266 nm			-	15	-
	213 nm¹⁾				-	5.5
PRR, Hz		100
Beam diameter, mm ²⁾		≤ 5
Pulse-to-pulse energy stability, ±%²⁾		± 1.5
Pulse duration, ns ²⁾		9…12
Divergence, mrad ²⁾		≤ 1.5
Jitter, ns ³⁾		± 1.5
Power consumption, W		≤ 2000
Cooling system		water-to-air
Dimensions (LxWxH), mm	Laser head	740 x 180 x 125
	Power supply	620 x 330 x 670

* Specifications are subject to change without notice.
1) With the STLG105 external fifth harmonic generator.
2) At 1064 nm.
3) Relative to the Q-Switch driver external trigger pulse.

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