Single-Frequency High-Power Low-Noise PM Fiber Lasers
Product Description
QTekLaser products with model No. QT-SF-LASR-xx-xxxx-x-x-xxx-x are a series of laser systems with integrated laser seeds and amplifiers at wavelengths ranging from 1012-1080 nm, 1530-1610 nm, and 1776-2040 nm with a maximum output power from 0.5 W to 100 W. An internet-of-things (IoT)-based control system is used to enable a user-friendly interface. The system is packaged in a typical industrial 19’’ 3U or 4U rack-mountable chassis.

Complete fiber laser system with water cooling
Features
- High reliability with all fiber design
- SBS free
- Low noise
- High output power (up to 100 W)
- High PER
- Low thermal lensing
- Excellent beam quality
- Compatible with narrow linewidth laser seed
- Excellent power stability
- User-friendly interface via IoT technology
- 3 or 4U 19" Rack mount
- Certified to IEC 60825-1:2014 safety standards
Applications
- Quantum computing
- Quantum sensing
- Atomic interferometry
- Laser cooling and trapping
- Frequency doubling or mixing
- Research
Single Frequency
QTekLaser amplifiers work with various kinds of seed lasers. They can be economic semiconductor diode lasers with MHz laser linewidth, robust fiber lasers with kHz linewidth, or expensive cavity-locked ultra-stable lasers with Hzl linewidth. Based on customer requirements, we can recommend the best options and integrate them into the laser system as illustrated in figure 1.

Figure 1. Typical QTekLaser fiber laser.
Specifications
Specification | SF-LASR-Yb | SF-LASR-Er | SF-LASR-Tm |
Center wavelength | 1012-1080 nm | 1530-1610 nm | 1776-2040 nm |
Output power | 1-100 W | 1-60 W | 1-60 W |
Linewidth | <20 kHz, <3 MHz, <10 MHz | <20 kHz, <3 MHz, <10 MHz | <20 kHz, <3 MHz, <10 MHz |
Optical bandwidth | ≥0.2 nm | ≥0.2 nm | ≥0.2 nm |
Operation mode | Continuous wave (CW) | Continuous wave (CW) | Continuous wave (CW) |
Operating Temperature | 17-25 °C | 17-25 °C | 17-25 °C |
Package Dimensions | 19" 3U or 4U | 19" 3U or 4U | 19" 3U or 4U |
PER | >18 dB | >18 dB | >18 dB |
Cooling mode | Forced Air or Water Cooling | Forced Air or Water Cooling | Forced Air or Water Cooling |
Output fiber | Passive-10/125 (-PM) or PLMA | PM1550-XP or PLMA | PM1950 or PLMA |

QTek Laser's 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.
Ordering Information
QT-SF-LSR | -Doping | -Wavelength-Power (W) | -Cooling | -Linewidth | -Fiber length (m) | Output connector |
Yb Er Tm |
1012-1080 1530-1610 1776-2050 |
1-100 1-60 1-60 |
A: forced air W: water |
0: <10 MHz 1: <3 MHz 2: <20 kHz 3: other |
0: 0.5 1: 1.0 2: 1.5 3: 2.0 4: 2.5 5: other |
0: FC/APC 1: collimator 2: other |
Example: QT-SF-LSR-Yb-1064-50-W-1-2-1
Yb doped, 1064 nm wavelength, 50 W power, water cooling, <3MHz linewidth, 1.5 m fiber length, collimator output connector
Note: Not all combinations are valid, contact the factory for guidance.
Product Photos

Complete fiber laser system 3 U chassis water cooled

Complete fiber laser system 3U chassis back panel water cooled

Complete fiber laser system, 3U chassis air cooled

Complete fiber laser system back panel, 3U chassis air cooled

1064 nm 50 W fiber laser system, 4U chassis water cooled

50 W fiber laser system back panel, 4U chassis water cooled