Features
- Output power 4 W
- High reliability with all-fiber design
- Linewidth (<1 MHz)
- Excellent power stability (<1%)
- User-friendly interface via IoT technology
- 3U 19" Rack mount
- Certified to IEC 60825-1:2014 safety standards
Applications
- Quantum computing
- Quantum sensing
- Atomic interferometry
- Laser cooling and trapping
- Research
Second-Harmonic Generation (SHG)
QTekLaser™ 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 waveguide technology, nonlinear frequency conversion has become a powerful tool to extend the application scope of fiber lasers.
SFG Output Wavelength Matrix
|
SF-AMP-Tm2
(865 – 1030 nm) |
SF-AMP-Yb
(1012 – 1112nm) |
SF-AMP-Er
(1530 – 1610 nm) |
SF-AMP-Tm
(1730 – 2060 nm) |
SF-AMP-Yb
(1012 – 1112 nm) |
466 – 535 nm |
506 – 556 nm |
|
|
SF-AMP-Er
(1530 – 1610 nm) |
553 – 628 nm |
609 – 658 nm |
765 – 805 nm |
|
SF-AMP-Tm
(1730 – 2060 nm) |
576 – 687 nm |
638 – 722 nm |
812 – 904 nm |
865 – 1030 nm |
Table 1. Wavelength extension of QTekLaser™ products via nonlinear frequency conversion. The red-shaded cells represent second-harmonic generation (SHG) and the blue-shaded cells sum-frequency generation (SFG).
Figure 2. QTekLaser™ fiber laser system with an integrated frequency doubler.
Specifications
Download 795 nm Fiber Laser Specifications
795 nm Fiber Laser — Specifications
| Parameter | Value | Unit |
|---|
| Laser | Wavelength | 795 | nm |
| Output power | 4 | W |
| Polarization Extinction Ratio (PER) | 20 | dB |
| Power stability | <1 | % |
| Laser linewidth | <1 | MHz |
| Beam quality | TEM00, M2~1.0 | / |
| Output mode | PM780-HP with FC/APC connector | |
| Relative Intensity Noise (RIN) for freq. >10 kHz | <-135 | dBc/Hz |
| Side-Mode Suppression Ratio (SMSR) | 60 | dB |
| General | Operating temperature | 17-25 | °C |
| Cooling mode | Air or Water cooling | / |
| Chassis | 3U 19" Rack mount | |
QTekLaser™ 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 QTekLaser™ 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-SHG-795-4-A-2-1.5-0
Laser Type: Seed laser + Er-doped fiber amp + SHG
Product Selection GuidePerformance
Beam Profile
Figure 3. Beam Profile 795 nm. The beam is collimated with a Thorlabs F220APC-780 collimator, not included. It exhibits an excellent, round Gaussian profile with a 1/e² beam diameter of 1.9 mm.
Laser Power vs. Current
Figure 4. Laser Power vs. Current 795 nm.
Optical Spectrum
Figure 5. Optical Spectrum: SMSR 60 dB 795 nm.
Relative Intensity Noise (RIN)
Figure 6. Relative Intensity Noise (RIN): <-135 dBc/Hz >10kHz 795 nm.
Tunability
Frequency vs. Seed Laser Temp.
Figure 7. Tunability: Frequency vs. Seed Laser Temp. 795 nm.
Tunability
Wavelength vs. Seed Laser Temp.
Figure 8. Tunability: Wavelength vs. Seed Laser Temp. 795 nm.
Tunability
Frequency vs. Seed Laser Current
Figure 9. Tunability: Frequency vs. Seed Laser Current 795 nm.
Tunability
Wavelength vs. Seed Laser Current
Figure 10. Tunability: Wavelength vs. Seed Laser Current 795 nm.
Optimal SHG Temperature vs. Wavelength
Figure 11. Optimal SHG Temperature vs. Wavelength 795 nm.
Quantum Applications
The 795 nm laser addresses the rubidium D1 transition for gray-molasses cooling and clean optical pumping. Its 4 W of low-noise, single-frequency output supports sub-Doppler laser cooling and trapping, atomic interferometry, and quantum-sensing platforms that need a stable D1 source alongside their D2 lasers.
Mechanical Dimensions
Figure 12. 795 nm fiber laser mechanical dimensions.
Product Photos
Figure 13. 795 nm fiber laser 3U chassis air cooled
Figure 14. 795 nm fiber laser 3U chassis back panel air cooled