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
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.

Diagram of a typical QTekLaser laser system.  Seed laser and multi-stage amplifier
Figure 1. Typical QTekLaser fiber laser.

Specifications

SpecificationSF-LASR-YbSF-LASR-ErSF-LASR-Tm
Center wavelength1012-1080 nm1530-1610 nm1776-2040 nm
Output power1-100 W1-60 W1-60 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 modeContinuous wave (CW)Continuous wave (CW)Continuous wave (CW)
Operating Temperature17-25 °C17-25 °C17-25 °C
Package Dimensions19" 3U or 4U19" 3U or 4U19" 3U or 4U
PER>18 dB>18 dB>18 dB
Cooling modeForced Air or Water CoolingForced Air or Water CoolingForced Air or Water Cooling
Output fiberPassive-10/125 (-PM) or PLMAPM1550-XP or PLMAPM1950 or PLMA
Class 4 Laser

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.

Performance

Broad Optical Bandwidth

Broad Optical Bandwidth

Relative Intensity Noise (RIN)
1064 nm 50 W

Relative Intensity Noise (RIN)1064 nm 50 W

795 nm 4 W RIN

795 nm 4 W RIN

1590 nm 10 W RIN

1590 nm 10 W RIN

Beam Quality Factor 𝑀2<1.1

Beam Quality Factor 𝑀2<1.1

Side Mode Suppression Ratio
1064 nm 59 dB

Side Mode Suppression Ratio1064 nm 59 dB

Polarization Extinction Ratio: 20-35 dB

Polarization Extinction Ratio: 20-35 dB

Application in AMO Lab

Potassium D1 atomic absorption (AMO application)

Product Photos

Complete fiber laser system 3 U chassis water cooled
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 back panel water cooled
Complete fiber laser system, 3U chassis air cooled
Complete fiber laser system, 3U chassis air cooled
Complete fiber laser system back panel, 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
1064 nm 50 W fiber laser system, 4U chassis water cooled
50 W fiber laser system back panel, 4U chassis water cooled
50 W fiber laser system back panel, 4U chassis water cooled