CW Fiber Lasers

1.5um Single-Mode CW Fiber Laser

1.5um Single-Mode CW Fiber Laser

The 1.5um CW fiber lasers of Connet Laser are eye-safe high power fiber lasers. These fiber lasers employ the integrated design of all-fiber structure and use the double cladding fiber pumping technology to realize ...

Specifications
Center Wavelength: 1550 nm
Output Power: 10 W
Output Mode: N/A
Beam Quality (M^2): 1.1
Spectral Linewidth: 1 nm
THFL-1.5: 30W CW Fiber Laser 1550nm

THFL-1.5: 30W CW Fiber Laser 1550nm

The THFL-1.5 is a 1550nm high power CW turnkey fiber laser from Bktel.   These high brightness lasers provide up to 30 W of output power from a single-mode fiber optic making them ideal for a wide range of ...

Sold by: RPMC Lasers, Inc. Ships from: United States
Specifications
Center Wavelength: 1550 nm
Output Power: 30 W
Output Mode: N/A
Beam Quality (M^2): 1.1
Spectral Linewidth: 1 nm
974/976nm Pump Laser

974/976nm Pump Laser

The 974/976nm single-wavelength laser adopts a butterfly-shaped semiconductor laser chip with fiber FBG frequency locking. The professionally designed drive circuit and TEC control ensure the safe operation of the ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 974 nm
Output Power: 1 W
Beam Quality (M^2): Not Specified
Output Power Options: 200/400/600/1000 mW
Short-term Stability (15 Minutes): ≤ ±0.02 dB
Connet 1.0um Single-mode CW Fiber Laser 0.2-20W

Connet 1.0um Single-mode CW Fiber Laser 0.2-20W

Connet's 1.0um single-mode CW fiber laser is a highly integrated continuous Yb-doped fiber laser system that delivers high-power output. Utilizing an all-fiber structure and double cladding fiber pumping technology, ...

Specifications
Center Wavelength: 1064 nm
Output Power: 20 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.2
Spectral Linewidth: 1 nm
Connet 1.0um Band MHz Narrow Linewidth Fiber Laser

Connet 1.0um Band MHz Narrow Linewidth Fiber Laser

Connet's 1.0um Band MHz Narrow Linewidth CW Fiber Laser employs an innovative MOPA (Master Oscillator Power Amplifier) structure design, incorporating MHz-level narrow linewidth seed lasers like DFB and DBR. This ...

Specifications
Center Wavelength: 1070 nm
Output Power: 50 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.05
Spectral Linewidth: Not Specified
1480nm Fiber Laser

1480nm Fiber Laser

The 1480nm single-wavelength laser adopts high-performance butterfly semiconductor laser chip, professionally designed drive circuit and TEC control to ensure the safe operation of the laser, stable output power and ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 1480 nm
Output Power: 0.8 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): Not Specified
Spectral Linewidth: Not Specified
1570nm Fiber Laser

1570nm Fiber Laser

1570nm fiber laser light source adopts DFB semiconductor laser chip, single-mode optical fiber output, professionally designed driving circuit and TEC control to ensure laser safety and stability, which can provide ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 1570 nm
Output Power: 5 W
Output Mode: N/A
Beam Quality (M^2): Not Specified
Spectral Linewidth: 0.1 nm
CYFL-KILO - Continuous Wave Ytterbium Fiber Laser

CYFL-KILO - Continuous Wave Ytterbium Fiber Laser

CYFL-KILO stands for Ytterbium fiber laser. The series provides a longitudinal single modeand frequency output laser beam. These lasers series deliver up to 20W with low phasenoise and low Relative Intensity ...

Sold by: Keopsys by Lumibird Ships from: France
Specifications
Center Wavelength: 1064 nm
Output Power: 1 W
Output Mode: N/A
Beam Quality (M^2): 1.1
Spectral Linewidth: Not Specified
EQ Photonics GmbH - 2μm CW Fiber Laser - TLPS-500

EQ Photonics GmbH - 2μm CW Fiber Laser - TLPS-500

The 2 μm CW fiber laser utilizes a thulium-doped rare earth element as its gain medium. Many non-metallic materials—such as plastic, carbon fiber, wood fiber, and paper—exhibit high absorption at the ...

Sold by: EQ Photonics Ships from: Germany
Specifications
Center Wavelength: 2000 nm
Output Power: 500 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): Not Specified
Spectral Linewidth: Not Specified
MFL-1: 1um CW Fiber Laser

MFL-1: 1um CW Fiber Laser

The BKtel MFL-1 1064nm High Power Fiber Laser is an industrial-grade laser solution designed for high-performance applications in test and measurement, materials processing, and general photonics experimentation. ...

Sold by: RPMC Lasers, Inc. Ships from: United States
Specifications
Center Wavelength: 1064 nm
Output Power: 60 W
Output Mode: Continuous Wave (CW), Modulated
Beam Quality (M^2): 1.1
Spectral Linewidth: Not Specified
793/808/976nm MM Fiber Coupled High Power Pump Laser

793/808/976nm MM Fiber Coupled High Power Pump Laser

The DK Photonics MM Fiber Coupled High Power Pump Laser (DK-XS-DT-006-A/2) is an advanced laser source engineered for demanding applications in fiber laser pumping, biomedical research, and laser material ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 915 nm
Output Power: 50 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): Not Specified
Spectral Linewidth: 6 nm
1550nm Ultra-Narrow Linewidth Fiber Laser

1550nm Ultra-Narrow Linewidth Fiber Laser

Enhance your sensing applications with the precision of the 1550nm Ultra-Narrow Linewidth Fiber Laser. Featuring a rare earth-doped fiber Distributed Feedback (DFB) laser cavity structure, this laser delivers single ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 1550 nm
Output Power: 0.1 W
Output Mode: Not Specified
Beam Quality (M^2): Not Specified
Spectral Linewidth: 3 nm
1550nm Fiber Laser (High power)

1550nm Fiber Laser (High power)

1550nm  Fiber Laser *(High Power) is a robust continuous-wave (CW) laser source engineered for high-performance applications requiring stable, high-output power. Utilizing a Distributed Feedback (DFB) ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 1550 nm
Output Power: 15 W
Output Mode: N/A
Beam Quality (M^2): Not Specified
Spectral Linewidth: Not Specified
1550nm Fiber Laser (low power)

1550nm Fiber Laser (low power)

The 1550nm fiber laser light source integrates a high-precision DFB (Distributed Feedback) semiconductor laser chip and a single-mode optical fiber output. This advanced configuration is complemented by a ...

Sold by: DK Photonics Ships from: China
Specifications
Center Wavelength: 1550 nm
Output Power: 0.2 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): Not Specified
Spectral Linewidth: 0.024 nm
Connet CoSF-D-TM-M Single Frequency Fiber Laser Module

Connet CoSF-D-TM-M Single Frequency Fiber Laser Module

The Connet CoSF-D-TM-M Single Frequency Fiber Laser Module represents a pioneering achievement in laser technology. It harnesses the power of distributed feedback Bragg grating (DFB) fiber laser technology, boasting ...

Specifications
Center Wavelength: 2000 nm
Output Power: 0.02 W
Output Mode: Single Frequency, Single Longitudinal Mode
Beam Quality (M^2): 1.05
Spectral Linewidth: 0.1 nm
1.5um Single-mode CW Fiber Laser 15-100W

1.5um Single-mode CW Fiber Laser 15-100W

The 1.5um CW fiber laser from Connet is a high-power fiber laser designed for eye-safe applications. It features an integrated all-fiber structure and utilizes double cladding fiber pumping technology to achieve ...

Specifications
Center Wavelength: 1550 nm
Output Power: 100 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.5
Spectral Linewidth: 1 nm
1532nm High Power CW Fiber Laser

1532nm High Power CW Fiber Laser

The Connet 1532nm high power CW fiber laser is a reliable and stable laser system that offers high output power of up to 30W. With its narrow spectral width and near single-mode beam quality, it is suitable for ...

Specifications
Center Wavelength: 1532 nm
Output Power: 30 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.2
Spectral Linewidth: 1 nm
1.5um Single-Mode CW Fiber Laser 200mW-15W

1.5um Single-Mode CW Fiber Laser 200mW-15W

The 1.5um Single-mode CW Fiber Laser by Connet is a high-power, eye-safe fiber laser. With its all-fiber integrated design and double cladding fiber pumping technology, this laser delivers high-performance output ...

Specifications
Center Wavelength: 1550 nm
Output Power: 15 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.1
Spectral Linewidth: 1 nm
1.0um Single-mode CW Fiber Laser 20-100W

1.0um Single-mode CW Fiber Laser 20-100W

The 1.0um single-mode CW fiber laser by Connet is a highly integrated continuous Yb-doped fiber laser system with a high power output. It utilizes an all-fiber structure and double cladding fiber pumping technology, ...

Specifications
Center Wavelength: 1064 nm
Output Power: 100 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.3
Spectral Linewidth: 1 nm
2.0um Band MHz Narrow Linewidth Fiber Laser

2.0um Band MHz Narrow Linewidth Fiber Laser

The Connet 2.0um Band MHz Narrow Linewidth Fiber Laser is a high-performance continuous wave (CW) fiber laser that operates in the 2.0um wavelength band. It utilizes a master oscillator power amplifier (MOPA) ...

Specifications
Center Wavelength: 2050 nm
Output Power: 0.1 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.05
Spectral Linewidth: Not Specified
1.0um Band GHz Narrow Linewidth Fiber Laser

1.0um Band GHz Narrow Linewidth Fiber Laser

The Connet 1.0um Band GHz Narrow Linewidth Single-frequency Fiber Laser is designed with a Master Oscillator Power Amplifier (MOPA) structure. It features a built-in single-frequency narrow linewidth seed laser and ...

Specifications
Center Wavelength: 1064 nm
Output Power: 0.05 W
Output Mode: Continuous Wave (CW)
Beam Quality (M^2): 1.05
Spectral Linewidth: Not Specified
CoWIND 1550nm High Power Single Frequency Fiber Laser Module

CoWIND 1550nm High Power Single Frequency Fiber Laser Module

The CoWIND Series 1550nm High Power Single Frequency Fiber Laser Module from Connet is an OEM modular narrow linewidth fiber laser designed for short-range high-precision wind LiDAR applications. With an eye-safe ...

Specifications
Center Wavelength: 1550 nm
Output Power: 2 W
Output Mode: Continuous Wave (CW), Single Frequency, Single Longitudinal Mode
Beam Quality (M^2): 1.1
Spectral Linewidth: Not Specified
MFL-2: 2um CW Fiber Laser

MFL-2: 2um CW Fiber Laser

The MFL-2 is a 2um high power CW Fiber Laser from Bktel.   These high brightness lasers provide up to 40 W of output power from a single-mode fiber optic making them ideal for a wide range of industrial ...

Sold by: RPMC Lasers, Inc. Ships from: United States
Specifications
Center Wavelength: 2000 nm
Output Power: 40 W
Output Mode: Modulated
Beam Quality (M^2): 1.1
Spectral Linewidth: 1 nm
Connet CoSF-R-YB-M Single Frequency Fiber Laser Module

Connet CoSF-R-YB-M Single Frequency Fiber Laser Module

This advanced fiber laser module is designed for ultra-narrow linewidth single-frequency laser output with extraordinary noise control. It employs patented technology to eliminate standing wave space hole burning, ...

Specifications
Center Wavelength: 1010 nm
Output Power: 0.1 W
Output Mode: Continuous Wave (CW), Single Frequency, Single Longitudinal Mode
Beam Quality (M^2): 1.1
Spectral Linewidth: Not Specified

Did You Know?

CW fiber lasers—short for continuous wave fiber lasers—are the workhorses of many modern laser applications, offering high power output with exceptional beam quality and operational efficiency. Unlike pulsed lasers that deliver energy in bursts, CW fiber lasers emit a constant, uninterrupted laser beam, making them ideal for processes requiring stable and prolonged energy delivery. Thanks to their all-fiber architecture and air- or water-cooled systems, CW fiber lasers are compact, low-maintenance, and incredibly efficient. Whether you need a few watts or several kilowatts of optical power, CW lasers scale seamlessly, delivering excellent performance with minimal footprint. The use of doped optical fibers, such as ytterbium-doped fibers, allows for power scalability, high wall-plug efficiency, and precise beam control. High power CW fiber lasers are widely used in industrial manufacturing—for tasks like cutting, welding, cladding, and drilling. Their continuous output ensures smooth processing of metals, plastics, and composites. In the medical field, they support procedures that require steady illumination or thermal interaction with tissues. And in scientific research, CW lasers enable experiments that rely on consistent photon flux, such as optical trapping, spectroscopy, and nonlinear optics. Moreover, fiber lasers' immunity to misalignment and vibrations makes them more robust and reliable than their solid-state counterparts. Their modularity also allows easy integration into automated systems. As manufacturing, healthcare, and defense industries continue to demand precision and reliability, CW fiber lasers are becoming the go-to technology for continuous, high-quality laser output across a growing spectrum of applications.

Frequently Asked Questions

In fiber lasers the active gain medium is an optical fiber doped with rare elements. A pump source, typically a laser diode is coupled into the core of a doped optical fiber where stimulated emission occurs. Doping the optical fiber with rare earth element such as ytterbium, erbium, holmium, etc. creates the medium where population inversion is enabled and where light amplification by stimulated emission occurs. The light generated is then amplified upon thousands of reflections off the nodes of a fiber Bragg grating which acts as the “cavity mirrors” similar to that of a traditional free-space laser. Fiber Bragg grating acts as the optical filter allowing reflection of only specific modes in the laser cavity.

CW Fiber Lasers: The Continuous Power Behind Precision Applications

Continuous Wave (CW) fiber lasers are an essential technology in the modern photonics landscape. Unlike pulsed lasers, which emit bursts of light, CW fiber lasers provide a steady, uninterrupted laser beam. This continuous output is indispensable for applications that require consistent energy delivery, such as precision welding, cutting, thermal processing, and scientific experimentation.

What Is a CW Fiber Laser?

A CW fiber laser generates a laser beam that maintains a constant optical output over time. This is achieved by exciting rare-earth dopants (commonly ytterbium, erbium, or thulium) embedded in an optical fiber using diode lasers. The result is a highly efficient and compact system with outstanding beam quality and thermal management.

The fiber-based structure allows the laser to be coiled, cooled, and integrated into tight spaces—offering great flexibility and ease of use compared to bulkier laser systems. The fiber acts as both the gain medium and waveguide, ensuring stable beam propagation and minimal signal loss.

Advantages of CW Fiber Lasers

  1. High Beam Quality
    CW fiber lasers produce diffraction-limited beams, which means cleaner cuts, finer welds, and more precise results across applications.

  2. Scalability
    Easily scaled from a few watts to multi-kilowatt systems for different power needs.

  3. Energy Efficiency
    With wall-plug efficiencies exceeding 30–40%, these lasers are more energy-conscious than traditional gas or solid-state lasers.

  4. Compact and Robust Design
    All-fiber design ensures fewer alignment issues, better thermal dissipation, and less downtime.

  5. Low Maintenance
    Fiber lasers have no moving parts, making them highly durable and nearly maintenance-free.

Applications of CW Fiber Lasers

  1. Industrial Manufacturing
    The largest domain for high power CW fiber lasers, manufacturing benefits from their ability to cut, weld, drill, and scribe a variety of materials with precision. Metals like stainless steel, aluminum, and titanium are routinely processed using these lasers.

  2. Medical and Biomedical
    CW lasers are used for photocoagulation, surgical cutting, and thermal ablation. Their stable output allows controlled tissue interaction with minimal collateral damage.

  3. Defense and Aerospace
    In defense, CW lasers are explored for applications like directed energy weapons and countermeasure systems. Their ability to deliver constant power makes them viable for target illumination and destruction.

  4. Scientific Research
    Laboratories use CW lasers for optical trapping, Raman spectroscopy, and frequency doubling experiments, where stable, continuous light is essential for data integrity.

  5. Telecommunications
    While pulsed lasers often dominate short bursts of data transmission, CW lasers still play a role in pumping optical amplifiers and in certain coherent communication systems.

The Future of CW Fiber Lasers

As industry demands increasingly high power CW lasers for advanced applications, fiber laser technology is evolving rapidly. Innovations in cooling, fiber core design, and wavelength tunability are opening up new possibilities—from ultrafast materials processing to quantum communication.

Moreover, integration with robotics and AI-based automation systems is allowing CW fiber lasers to reach new heights in smart manufacturing. Their modular design and digital control interfaces make them easy to deploy, monitor, and optimize in real-time.

Conclusion

CW fiber lasers are no longer just tools—they’re critical enablers of precision, speed, and efficiency across a vast spectrum of industries. From high-power industrial cutting to delicate medical procedures and cutting-edge research, the continuous and clean output of CW fiber lasers positions them as cornerstones of the photonics revolution.

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