Features
- Output power 2 W
- High reliability with all-fiber design
- 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
- Metastable-state reset
- Repumping
- State-selective redout
- Leakage and erasure detection
- 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 770 nm Fiber Laser Specifications
770 nm Fiber Laser — Specifications
| Parameter | Value | Unit |
|---|
| Laser | Center wavelength | 770.15 | nm |
| Operation mode | CW | / |
| Max output power | 2 | W |
| Output fiber type | PM780-HP | |
| Beam quality (M2) | <1.1 | / |
| Relative intensity noise (RIN) for freq. >10 kHz | -130 | dBc/Hz |
| Output fiber length | 3 | m |
| Polarization direction | Slow axis or key direction | / |
| Polarization extinction ratio (PER) | 21.7 | dB |
| Optical signal-to-noise ratio (OSNR) | 50 | dB |
| Electrical | Max power consumption | 114 | W |
| AC power supply voltage | 110 | V |
| Fuse | 8 A, 250 VAC, 5×20 mm | / |
| Remote interlock voltage | 3.3 | V |
| General | Warm-up time | 10 | min |
| Cooling | Chilled water | / |
| Suggested chiller temperature | 21 | °C |
| Chilled water flow rate | >=0.65 | GPM |
| Room temperature | 17 – 25 | °C |
| Room humidity | 30 – 60 | % |
| Weight | 17.9 (39.4) | kg (lbs) |
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-770-2-A-2-2-0
Laser Type: Seed laser + Er-doped fiber amp + SHG
Product Selection GuidePerformance
Beam Profile
Figure 3. Beam Profile 770 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 1.7 mm.
Laser Power vs. Current
Figure 4. Laser Power vs. Current 770 nm.
Optical Spectrum
Figure 5. Optical Spectrum: 770 nm OSNR 50 dB
AMO Application
Potassium D1 Atomic Absorption
Figure 6. AMO Application: Potassium D1 Atomic Absorption 770 nm.
Relative Intensity Noise (RIN)
Figure 7. Relative Intensity Noise (RIN) 770 nm, <-130 dBc/Hz >10 kHz
Polarization Extinction Ratio (PER)
Figure 8. Polarization Extinction Ratio (PER) 770 nm 21.7 dB.
Quantum Applications
The 770 nm fiber laser is designed for neutral-atom quantum-computing. Its narrow-linewidth, 2 W output supports repumping and metastable-state reset, state-selective readout, and the leakage- and erasure-detection steps that raise gate fidelity in array-based processors with enough headroom to feed several beam paths from one laser.
Mechanical Dimensions
Figure 9. 770 nm fiber laser mechanical dimensions, 4U water cooled.
Figure 10. 770 nm fiber laser mechanical dimensions, 3U air cooled.
Product Photos
Figure 11. 770 nm fiber laser 3U chassis air cooled.
Figure 12. 770 nm fiber laser 3U chassis back panel air cooled.