532 nm Fiber Laser

Product Description

The QTekLaserTM 532 nm fiber laser utilizes second-harmonic generation (SHG), providing narrow-linewidth polarization-maintaining (PM) light at a power levels up to 14 W. A smart internet-of-things (IoT)-based control system is adopted to enable user-friendly interface. The system is packaged in a typical industrial 4U 19" rack-mountable chassis with a laser head.

Product Selection Guide
532 nm 14 W second-harmonic generation (SHG) fiber laser.
Figure 1. QTekLaserTM 532 nm fiber laser.

Features

  • 532 nm
  • High output power (14 W)
  • High reliability
  •  Narrow linewidth (<20 kHz)
  •  Excellent power stability (<1%)
  •  User-friendly interface via IoT technology
  • 4U 19" Rack mount
  • Certified to IEC 60825-1:2014 safety standards

Applications

  • Laser cooling and trapping 
  • Atomic interferometry
  • Quantum sensing
  • Quantum computing
  • Pumping Ti:Sapphire laser
  • Precision measurement
  • Holography

Second-Harmonic Generation (SHG)

QTekLaserTM offers laser systems with extended wavelength range by combining nonlinear frequency conversion technologies. Through second-harmonic generation (SHG) we achieve significant laser power at the visible and NIR regime (figure 2;  red-shaded cells of table 1).  With the development of periodic poled crystal technology and the associated waveguide technology, nonlinear frequency conversion has become a powerful tool to extend the application scope of fiber lasers. For QTekLaserTM products, the max power of the converted laser light is constrained by the damage threshold of commercially available nonlinear crystals, which is typically several tens of watts.

Wavelength extension of QTekLaser products via nonlinear frequency conversion. The red-shaded cells represent SHG and blue-shaded cells SFG.
Table 1. Wavelength extension of QTekLaserTM products via nonlinear frequency conversion. The red-shaded cells represent second-harmonic generation (SHG) and the blue-shaded cells sum-frequency generation (SFG).
fiber laser system with an integrated frequency doubler
Figure 2. QTekLaserTM fiber laser system with an integrated frequency doubler.

Specifications

Wavelength532 nm
Output power1-14 W
Polarization Extinction Ratio (PER)25 dB
Power stability<1%
Laser linewidth<20 kHz
Operating temperature17-25 °C
Wavelength tuning range0.5 nm
Cooling modeWater cooling
Beam qualityTEM00, M2<1.1
Output modeFree space, collimated with ~2.1-2.2 mm 1/e² diameter
Relative Intensity Noise (RIN)-135 dBc/Hz >10kHz
Side-Mode Supression Ratio (SMSR)60 dB
Laser Head Size12"x12"x3.714"
Chassis4U 19" Rack mount
Class 4 Laser

QTekLaserTM lasers comply with Federal Regulations (21 CFR Subchapter J, Part 1040)  as administered by the Center for Devices and Radiological Health and are certified to IEC 60825-1:2014 standards.

It is the end user's responsibility to ensure that no significant light is retroreflected back into QTekLaserTM systems as this can degrade performance and potentially damage the lasers. To prevent this, the use of an external optical isolator is strongly recommended.  Damage due to retroreflected light is not covered under warranty.

Ordering Information

Part Number: QT-LASR-BSHG-532-14-W-2
Laser Type: Seed laser + Yb-doped fiber amp + SHG
Product Selection Guide

Performance

Power Stability

Power Stability: 532 nm @14 W, <1%
Figure 3. Power Stability: 532 nm @14 W, <1%.
Ripples caused by HVAC fluctuations overnight.

Beam Quality

Beam Quality: 532 nm M2 <1.1
Figure 4. Beam Quality: 532 nm M2 <1.1

Beam Profile

Beam Profile: 532 nm
Figure 5. Beam Profile 532 nm

Relative Intensity Noise (RIN)

Relative Intensity Noise (RIN): 532 nm-135 dBc/Hz >10kHz
Figure 6. Relative Intensity Noise (RIN): 532 nm <-135 dBc/Hz >10kHz

Optical Spectrum

Optical Spectrum: 532 nm SMSR 60 dB
Figure 7. Optical Spectrum: 532 nm SMSR 60 dB

Laser Power vs. Current 

Laser Power vs. Current: 532 nm 
Figure 8. Laser Power vs. Current: 532 nm 

Thermal Lensing Effect

Thermal Lensing Effect on Beam Size: 532 nm
Figure 9. Thermal Lensing Effect on Beam Size: 532 nm 

Mechanical Dimensions

532 nm complete fiber-laser system mechanical dimensions.
Figure 10. 532 nm fiber laser mechanical dimensions.

Product Photos

532 nm complete fiber laser system 4U chassis water cooled
Figure 11. 532 nm fiber laser system 4U chassis water cooled
532 nm complete fiber laser system 4U chassis back panel water cooled
Figure 12. 532 nm fiber laser system 4U chassis back panel water cooled
532 nm laser head operating
Figure 13. 532 nm laser head operating
532 nm laser head
Figure 14. 532 nm laser head
532 nm laser head front
Figure 15. 532 nm laser head front
532 nm laser head back
Figure 16. 532 nm laser head back
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411 Waverley Oaks Road, Suite 114, Waltham, MA 02452 USA | +1 781-373-1446 | sales@qteklaser.com