355nm DPSS Lasers

355nm DPSS Lasers

Keywords: DPSS Laser, Diode-pumped laser, UV laser
Feb 12, 2021 View: 3658 Data Sheet

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.

STC Series 355 nm UV Solid State Lasers

(1) High Stability UV Laser at 355nm
  1. STC-UV-F-355/ 1~10mW

  2. STC-UV-FN-360/ 1~200mW

(2) Passively Q-switched UV Laser at 355nm
  1. STC-MPL-F-355/ 0.1~15uJ/1~100mW

  2. STC-MPL-Q-355/ 0.1~15uJ/1~150mW Pulse width 1.3ns

  3. STC-MPL-N-355/ 0.1~90uJ/ 1~800mW

  4. STC-MPL-W-355/ 25~80uJ/ 400~2000mW

(3) Actively Q-switched UV Laser at 355nm
  1. STC-AO-S-355/ 1~40uJ/ 1~100mW

  2. STC-AO-L-355/ 40~100uJ/ 1~300mW

  3. STC-AO-V-355/ 1~100uJ/ 1~2W

  4. STC-AO-V-355-Water/ 1~250uJ/ 1~5W

  5. STC-EO-XS-355/ 1~50uJ/ 1~2W

  6. STC-EO-355-G/ 4~150uJ Good beam quality

  7. STC-EO-355-N/ 4~250uJ

  8. STC-DPS-355-E/ 1~2mJ

  9. STC-DPS-355-Q/ 2~10mJ Water cooled

(4) Picosecond Pulsed UV Laser at 355nm
  1. STC-DPS-355-Pico/ 100~700mW

  2. STC-PS-R-355/ 1~2000mW

  3. STC-DPS-355-PS/ 1~6000mW Water cooled

(5) Lamp Pumped Q-switched Laser at 355nm
  1. STC-LPS-355-S/ 20~80mJ

  2. STC-LPS-355-L/ 80~200mJ

(6) Fiber Laser at 355nm
  1. STC-FL-355-PS/ 1~50mWPulse duration <10ps

  2. STC-FL-355-Pico/ 1~50mWPulse duration <900ps

  3. STC-FL-355-Nano/ 1~300mW

(7) Fiber Coupled Laser System at 355nmSTC-MPL-355 (FC)/ 1~1500mW. All STC series lasers can be fiber coupled with different core diameter MM fiber or SM fiber. Please refer to the detailed specs of each laser (such as power, stability, noise, size, etc) to decide which one is suitable for your application. The fiber connectors are FC/SMA905. We will do the coupling job according to your specific requirements.

STL Series 355nm Q-switched 355nm DPSS Lasers

  • Laser head and power supply are individual and the laser head is compact

  • The laser is controlled via built-in panel and RS232

  • Widely used in 3C electronic applications and laser marking of metals and non-metals, 3D printing, surface film removing etc.

dpss lasers 355nm DPSS laser

Part numberSTL-355-3STL-355-5
Output laser power>3W@40kHz>5W@40kHz
Beam divergence<2mrad<2mrad
Pulse repetition rate20kHz-200kHz20kHz-200kHz
Pulse duration<15ns@30kHz<15ns@30kHz
Pulse to pulse stability<3%<3%
Average power stability<3%<3%
Beam spatial modeTEM00 (M2<1.2)TEM00 (M2<1.2)
Polarization ratio>100:1 horizontal>100:1 horizontal
Beam diameter<1mm<1mm
Beam circularity>90%>90%
CoolingWater coolingWater cooling
Warm-up time<15min<15min
Operation temperature18-35oC18-35oC
Dimension (laser head)292.1x139.7x112.8mm292.1x139.7x112.8mm
Dimension (power supply)305x250x110mm305x250x110mm

dpss lasers

STI Series DPSS UV Lasers

Part NumberSTI-355-3STI-355-5STI-355-12STI-355-15SSTI-355-20S
Pulse   Repetition Rate (kHz)10-150 (Option: single shot to 200kHz)30-150 (Option: single shot to 200kHz)40-150
Pulse   Width (ns)>3W@30kHz>5W@30kHz20±2ns@50kHz16±2ns@50kHz
Average   Power (W)≤16ns@30kHZ>12W@50kHZ >15W@50kHZ >20W@50kHZ
Average   Power Stability over 24hrs<±3%<±3%<±3%<±3%<±3%
Pulse-to-Pulse   Stability<3%rms<3%rms<3%rms<3%rms<3%rms
Spatial   ModeTEM00TEM00TEM00TEM00TEM00
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)±0.11±0.11±0.1
Beam Roundness>90%>90%>90%>90%>90%
Pointing Stability (urad)<50<50<50<50<50
Polarization DirectionHorizontalHorizontalHorizontalHorizontalHorizontal
Polarization Ratio100:1100:1100:1100:1100:1
Dimension (Laser Head) (mm)375x175x125375x175x125505x160x117580x210x117580x210x117

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

Typical Measured Data of STI-355-20: 

PRR (kHz)507090110130150
Power (W) @12.1A26.0325.9522.4519.2516.3814.05
Pulse width (ns)141822263034
Diode current (A)11.311.511.711.912.1
Power (W) @50kHz21.623.0724.5125.4826.03


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.



STJ Series 355nm DPSS Lasers

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:

Average Power>3W@40kHz>5W@60kHz
Pulse Width<10ns@40kHz<10ns@60kHz
Pulse Repetition Rate20kHz-200kHz30kHz-200kHz
Spatial ModeTEM00
Beam Quality M²M²≤1.2
Beam Roundness>90%
Beam Divergence≤2mard
Beam DiameterNon-expanding0.7±0.1mm
Polarization Ratio> 100:1
Polarization DircetionVertical
Average Power StabilityRMS≤3% @ 24hs
Pulse StabilityRMS≤3% @ 40hsRMS≤3% @ 60hs
Operating Temp & RH10-35℃;<80%
Storage Temp & RH-15~50℃;<90%
Supply VoltageDC 12V
Average Power Consumption< 300W< 350W
weightLaser Head:4kg
Power Control:7kg

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:

Average Power>3W@40kHz>5W@60kHz>10W@80kHz>15W@80kHz
Pulse Width<10ns@40kHz<10ns@60kHz<12ns@80kHz
Pulse Repetition Rate30kHz-200kHz40kHz-300kHz
Spatial ModeTEM00
Beam Quality M²M²≤1.2
Beam Roundness>90%
Beam Divergence≤2mard
Beam DiameterNon-expanding:0.7±0.1mmNon-expanding: 0.8±0.1mm
Polarization Ratio> 100:1
Polarization DirectionHorizontal
Average Power StabilityRMS≤3% @ 24hs
Pulse StabilityRMS≤3% @ 40kHzRMS≤3% @ 60kHzRMS≤3% @ 80kHz
Operating Temp & RH10~40℃;<80%
Storage Temp & RH-15~50℃;<90%
Supply VoltageDC 12V
Average Power Consumption< 300W< 350W< 450W
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