355nm DPSS Lasers

  • Update:May 30, 2020
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Thanks to the integrated design, the product has compact structure, small size, light weight, low power consumption, stable operation over time and good beam quality. The laser’s driver has a simple design and a user-friendly operation interface.

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1. STL Series 355nm Q-switched 355nm DPSS Lasers

dpss lasers 355nm DPSS laser

Part number

STL-355-3

STL-355-5

Wavelength

355nm

355nm

Output laser power

>3W@40kHz

>5W@40kHz

Beam divergence

<2mrad

<2mrad

Pulse repetition rate

20kHz-200kHz

20kHz-200kHz

Pulse duration

<15ns@30kHz

<15ns@30kHz

Pulse to pulse stability

<3%

<3%

Average power stability

<3%

<3%

Beam spatial mode

TEM00 (M2<1.2)

TEM00 (M2<1.2)

Polarization ratio

>100:1 horizontal

>100:1 horizontal

Beam diameter

<1mm

<1mm

Beam circularity

>90%

>90%

Cooling

Water cooling

Water cooling

Warm-up time

<15min

<15min

Operation temperature

18-35oC

18-35oC

Dimension (laser head)

292.1x139.7x112.8mm

292.1x139.7x112.8mm

Dimension (power supply)

305x250x110mm

305x250x110mm

dpss lasers

2. STI Series DPSS UV Lasers

Part Number

STI-355-3

STI-355-5

STI-355-10

STI-355-15

STI-355-20

Wavelength(nm)

355

355

355

355

355

Pulse Repetition Rate (kHz)

10-50

10-50

10-50

50-150

50-150

Pulse Width (ns) @50kHz

≤16

≤16

≤18

≤20

≤20

Average Power (W) @30kHz

>3

>5

>10

 >15

 >20

Average Power Stability over 24hrs

<±3%

<±3%

<±3%

<±3%

<±3%

Spatial Mode

TEM00

TEM00

TEM00

TEM00

TEM00

Beam Quality M²

<1.2

<1.2

<1.3

<1.3

<1.3

Beam Divergence Full Angle (mrad)

< 2

< 2

< 2

< 2

< 2

1/e2 Beam Dia. (mm)

0.7

0.7

0.7

0.7

0.7

Beam Roundness

>90%

>90%

>90%

>90%

>90%

Pointing Stability (urad)

<50

<50

<50

<50

<50

Polarization Direction

Horizontal

Horizontal

Horizontal

Horizontal

Horizontal

Polarization Ratio

100:1

100:1

100:1

100:1

100:1

Cooling

Water/Air

Water/Air

Water

Water

Water

Dimension (Laser Head) (mm)

415x115x106

415x115x106

415x115x106

415x115x106

415x115x106

Dimension (Power Supply) (mm)

480x454x130

480x454x130

480x454x130

480x454x130

480x454x130

Remark: Single shot to 200kHz for pulse repetition rate available upon request.

Applications

ITO film etching, ceramic cutting, scribing and marking, glass cutting and marking, polymeric material marking and cutting, material microprocessing, wafer cutting, laser rapid prototyping, scientific research.

As example, the performance of 15W laser is shown as follows.

3. Foton Series Diode Pumped 355nm UV Lasers

In order to meet the requirements of precise processing in industrial, we developed a 355nm end-pumped Q-switched laser. The adoption of water cooled system allows laser source to have stable performance, smaller size, compact structure and low power consumption. The output laser beam is the fundamental mode, the beam quality is good, and the peak power is high, which can meet most industrial precision processing requirements. The product is provided with either all-in-one pack or inpidual pack.

DPSS lasers

Features:

Thanks to the integrated design, the product has compact structure, small size, light weight, low power consumption, stable operation over time and good beam quality. The laser’s driver has a simple design and a user-friendly operation interface. It is extremely convenient for user to install and debug it, besides user also can adjust and control the laser power and repetition frequency output at any time in order to meet various need.

Applications:

Specification:

Model Foton-355-3 Foton-355-5 Foton-355-10 Foton-355-15
Laser DPSS Laser DPSS Laser DPSS Laser DPSS Laser
Wavelength 355nm 355nm 355nm 355nm
Average Power >3W@30kHz >5W@40kHz >10W@40kHz >15W@60kHz
Beam Spot <1.1mm <1.1mm <1.1mm <1.1mm
Beam Divergence <2mrad <2mrad <2mrad <2mrad
Pulse Width <15ns@30kHz <15ns@40kHz <15ns@50kHz <15ns@60kHz
Beam Mode TEM00 TEM00 TEM00 TEM00
Beam Quality (M2) ≤1.2 ≤1.2 ≤1.2 ≤1.2
Frequency Range 20kHz~200kHz 30kHz~200kHz 40kHz~200kHz 60kHz~200kHz
Stability ≤2% ≤2% ≤2% ≤2%
Pointing RMS <10urad <10urad <10urad <10urad
Polarization Linear (Vertical) Linear (Vertical) Linear (Vertical) Linear (Vertical)
Ratio >100:1 >100:1 >100:1 >100:1
Cooling Method Water Cooled Water Cooled Water Cooled Water Cooled
Power Supply 220VAC@50Hz 220VAC@50Hz 220VAC@50Hz 220VAC@50Hz
Working Temperature 15~30°C 15~30°C 15~30°C 15~30°C
Power Consumption 500W 500W 500W 700W
Dimension (all-in-one) 400x240x138mm 400x240x138mm 400x240x138mm 400x240x138mm
Weight (all-in-one) 17kg 17kg 17kg 17.5kg
Dimension (Individual, laser head) 462x160x87mm 462x160x87mm 462x160x87mm 462x160x87mm
Dimension (Individual, power supply) 482x332x88mm 482x332x88mm 482x332x88mm 482x332x88mm

We measured the laser pulse width and average power at the operation current 8.5A with our 5W 355nm laser and then calculated the laser peak power. The data are listed in the following table.

PRR (kHz)

Pulse Width (ns)

Average Power (W)

Peak Power (kW)

30

12

4.02

11

40

13

6.33

12

50

13

6.35

10

60

14

5.21

6

70

16

4.75

4

80

17

4.54

3

90

18

4.24

3

100

20

3.67

2

Typical Beam Distributions:

Distribution

A good beam quality can be observed from the 2 diagrams on above, as the energy intensity distribution is symmetry along X and Y axes.

applications

marking

4. STJ Series 355nm DPSS Lasers

4.1 STJ Lark-Series 355nm DPSS Lasers

STJ Lark-Series Lasers Includes UV and green light, it adopts a thermal method combining conduction heat dissipation and air convection heat dissipation. The pulse width is narrower, the repetition frequency is higher, the beam quality is high, and the spot roundness is high. In terms of structural design, it is smaller in size, lighter in weight and more beautiful in appearance. In the electronic control design, strong anti-electromagnetic interference capability, high thermal management efficiency, user-friendly GUI interface.

 

Technical specifications:

Model STJ-Lark-355-3S STJ-Lark-355-5S
Wavelength 355nm
Average Power >3W@40kHz >5W@60kHz
Pulse Width <10ns@40kHz <10ns@60kHz
Pulse Repetition Rate 20kHz-200kHz 30kHz-200kHz
Spatial Mode TEM00
Beam Quality M² M² ≤ 1.2
Beam Roundness >90%
Beam Divergence ≤2mard
Beam Diameter Non-expanding 0.7±0.1mm
Polarization Ratio > 100:1
Polarization Dircetion Vertical
Average Power Stability RMS ≤ 3% @ 24hs
Pulse Stability RMS ≤ 3% @ 40hs RMS ≤ 3% @ 60hs
Operating Temp & RH 10-35℃;<80%
Storage Temp & RH -15~50℃;<90%
Cooling Air
Supply Voltage DC 12V
Average Power Consumption < 300W < 350W
Size 236 × 118 × 110
weight Laser Head:4kg
Power Control :7kg

4.2 STJ Seal-Series 355nm DPSS Lasers

The STJ Seal-Series Lasers includes both UV and green lasers with excellent beam quality and perfect spot characteristics. The whole machine adopts integrated structure design, and the optical path and external drive circuit are integrated, which makes the product have strong anti-interference ability. Optimize and upgrade the fully sealed structure to prevent external dust. At the same time, the isolation of external water molecules make the machine have strong resistance of humidity, making the SEAL series adaptable to harsher industrial environments. In addition, a self-cleaning system in the cavity allows longer lifetime of the machine.

 

Technical specifications:

Model STJ-Seal-355-3S STJ-Seal-355-5S STJ-Seal-355-10S STJ-Seal-355-15S
Wavelength 355nm
Average Power   >3W@40kHz   >5W@60kHz   >10W@80kHz   >15W@80kHz
Pulse Width <10ns@40kHz <10ns@60kHz <12ns@80kHz
Pulse Repetition Rate 30kHz-200kHz 40kHz-300kHz
Spatial Mode TEM00
Beam Quality M² M² ≤ 1.2
Beam Roundness >90%
Beam Divergence ≤2mard
Beam Diameter Non-expanding:0.7±0.1mm Non-expanding: 0.8±0.1mm
Polarization Ratio  > 100:1
Polarization Direction  Horizontal
Average Power Stability RMS ≤ 3% @ 24hs
Pulse Stability RMS ≤ 3% @ 40kHz RMS ≤ 3% @ 60kHz RMS ≤ 3% @ 80kHz
Operating Temp & RH 10~40℃;<80%
Storage Temp & RH -15~50℃;<90%
Cooling Water
Supply Voltage DC 12V
Average Power Consumption < 300W < 350W < 450W
Size 302 × 180 × 114mm 337 × 180 × 114mm
Weight 9kg 13kg

 355nm DPSS Laser, 532nm DPSS Laser, 1064nm DPSS Laser, Single Frequency DPSS Laser

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