QCW Fiber Laser Technology: High Peak Power and Flexible Pulse Control for Precision Processing
Advanced Quasi-Continuous Wave Fiber Laser Solutions from CS Tec
With the increasing demand for high-precision laser processing, traditional CW (Continuous Wave) fiber lasers may not always provide the optimal solution for applications requiring high peak power, low heat input, and controlled energy delivery.
CS Tec’s Quasi-Continuous Wave (QCW) Fiber Lasers combine the advantages of CW laser stability and pulsed laser high-energy output, providing a flexible laser source solution for precision welding, drilling, surface processing, and advanced manufacturing applications.
Featuring high peak power, excellent beam quality, adjustable pulse parameters, and multiple wavelength options, CS QCW fiber lasers are designed to meet the diverse requirements of industrial, medical, and scientific applications.
What is a QCW Fiber Laser?
A QCW (Quasi-Continuous Wave) fiber laser operates by delivering laser energy in controlled pulses rather than continuous output.
Unlike conventional CW lasers that provide constant power output, QCW lasers can generate pulse peak power significantly higher than their average power.
For example:
- Average power: 1 kW
- Peak power: up to 10 kW
This high peak power capability enables stronger coupling with materials while maintaining lower overall thermal input.
Key Advantages of CS QCW Fiber Lasers
1. High Peak Power Capability
CS QCW fiber lasers can provide peak power up to 10 times the average power, significantly improving the interaction between laser energy and materials.
High peak power offers advantages in:
- Improved material penetration
- Faster processing speed
- Enhanced welding capability
- Better processing of reflective metals
This makes QCW lasers especially suitable for applications requiring high energy density but limited heat accumulation.
2. High Pulse Energy Output
Depending on the configuration, CS QCW fiber lasers can provide:
- Single-mode QCW: pulse energy up to 100 J
- Multi-mode QCW: pulse energy up to 1000 J
High pulse energy enables efficient processing of demanding materials and large-area applications.
Typical applications include:
- Deep penetration welding
- Spot welding
- Seam welding
- Laser drilling
- Metal surface processing
3. Excellent Beam Quality Options
CS provides both Single-Mode QCW and Multi-Mode QCW Fiber Laser solutions to meet different application requirements.
Single-Mode QCW Fiber Laser
Features:
- Beam quality: M² 1.1–1.8
- Core diameter: 14–30 μm
- Air-cooled design
Advantages:
- Higher brightness
- Smaller focused spot size
- Higher energy density
- Precision processing capability
Ideal for:
- Fine welding
- Precision manufacturing
- Medical applications
- Micro-processing
Multi-Mode QCW Fiber Laser
Features:
- Beam quality: M² 6–16
- Core diameter: 50–150 μm
- Water-cooled configuration
Advantages:
- Higher pulse energy
- Higher output power capability
- Better suitability for large-area processing
Ideal for:
- Industrial welding
- Heavy metal processing
- High-energy applications
Flexible Wavelength Options
In addition to standard 1080 nm fiber laser solutions, CS Tec provides customized wavelength configurations according to application requirements.
Available wavelength ranges include:
- 700–1000 nm
- 1018–1100 nm
- 1500–1600 nm
- 1700–1800 nm
- 1900–2000 nm
Different wavelengths provide optimized absorption characteristics for different materials, expanding the application possibilities of QCW laser technology.
| Parameter | Single-Mode QCW Fiber Laser | Multi-Mode QCW Fiber Laser |
|---|---|---|
| Operation Mode | CW/QCW | CW/QCW |
| Wavelength | 1080 nm Customized | 1080 nm Customized |
| Average Power | 150W–1000W | 3kW–10kW |
| Peak Power | Up to 10× Average Power | Up to 10× Average Power |
| Pulse Energy | Up to 100 J | Up to 1000 J |
| Pulse Duration | 0.1–50 ms | 0.2–10 ms |
| Beam Quality | M² 1.1–1.8 | M² 6–16 |
| Cooling | Air Cooling | Water Cooling |
QCW Fiber Laser Manufacturer | High Peak Power Quasi Continuous Wave Fiber Laser
Applications of QCW Fiber Lasers
Precision Welding
QCW fiber lasers provide controlled pulse energy and reduced thermal impact, making them suitable for:
- Battery component welding
- Electronic component welding
- Precision metal joining
- Spot and seam welding
Laser Drilling
High peak power and short pulse duration allow efficient material removal with reduced heat affected zones.
Applications include:
- Aerospace components
- Precision mechanical parts
- Industrial manufacturing
Metal and Non-Metal Processing
With flexible wavelength and beam quality options, QCW lasers can be adapted for:
- Stainless steel
- Aluminum
- Copper
- Titanium
- Advanced materials
Medical Applications
The precise energy control and excellent repeatability make QCW fiber lasers suitable for medical device manufacturing and precision processing.
Why Choose CS Tec QCW Fiber Lasers?
CS Tec focuses on developing advanced fiber laser sources with:
- High peak power output
- Flexible pulse control
- Excellent beam quality
- Multiple wavelength configurations
- Air-cooled and water-cooled solutions
- Customized laser source development capability
From precision manufacturing to advanced industrial applications, CS Tec provides reliable QCW fiber laser solutions designed for next-generation laser processing systems.
Wuhan CS Tec
Advanced Fiber Laser Source Manufacturer
