LECI is a leading provider of high-quality Fiber Laser Sources for industrial laser welding and laser cutting systems. We supply all major and trusted brands in the market such as Maxphotonics (MAX), Raycus, BWT, and IPG, meeting a wide range of requirements from thin-metal processing to high-power heavy-duty applications.
Fiber Laser Source
A Fiber Laser Source is the core component of modern laser processing systems, including laser welding machines, laser cutting machines, laser marking systems, and various industrial applications. With its ability to deliver a high-energy, stable laser beam and exceptionally long lifespan, the fiber laser source has become the industry standard for metal processing.
Fiber laser technology uses doped optical fibers as the gain medium, providing significant advantages over traditional CO₂ and YAG lasers, such as:
Higher electro-optical efficiency
Lower energy consumption
More compact size and minimal maintenance
Superior beam quality and long-term operational stability
Common Fiber Laser Sources
LECI offers a full range of Fiber Laser Sources from the world’s leading manufacturers, tailored for both welding and cutting applications in modern industrial production. All laser sources supplied by LECI meet strict optical and electronic standards, ensuring high accuracy, excellent stability, and outstanding productivity in demanding environments.
Maxphotonics (MAX) Fiber Laser Source
MAX fiber lasers are widely used in the metal fabrication industry thanks to their reliable operation, high efficiency, and competitive pricing.
Key Features:
Excellent beam quality and long-term stability
High electro-optical conversion efficiency
Robust performance for welding and cutting in the 1–6 kW+ power range
Easy integration into existing laser systems

MAX is suitable for both fiber laser cutting machines and laser welding systems, delivering reliable performance for continuous industrial production.
Raycus Fiber Laser Source
Raycus is one of the most widely adopted fiber laser brands in Vietnam, known for its high stability and cost-effective investment.
Key Advantages of Raycus Laser Sources:
Stable output power with minimal fluctuation
Beam quality suitable for metal cutting and welding applications
Compact design and easy maintenance
Strong resistance to back-reflection, ideal for reflective materials such as aluminum and stainless steel

BWT Fiber Laser Source
BWT (BaoWu Tech) fiber laser sources are known for their strong mechanical durability, high back-reflection resistance, and outstanding operational performance.
Key Features of BWT Laser Sources:
Excellent beam stability for consistent processing quality
High efficiency when welding or cutting highly reflective materials such as aluminum and copper
Optimized cooling and thermal management system for stable long-term operation
Long diode lifespan, supporting continuous high-power industrial workloads

IPG Fiber Laser Source
IPG Photonics is the world’s leading fiber laser manufacturer, renowned for its superior beam quality and exceptional reliability.
Key Advantages:
Industry-leading beam quality, ensuring the highest cutting and welding precision
Near-perfect power stability, delivering consistent performance in all operating conditions
Extremely long service life with minimal maintenance requirements
Outstanding durability, designed to operate reliably in high-duty industrial environments

Fiber Laser Source Structure
A fiber laser source generates a high-power laser beam through an amplification process inside a doped optical fiber. Its internal structure consists of multiple optical, electrical, and control modules that work together with high precision to produce a stable, continuous, and high-quality laser output. Each subsystem plays a critical role in ensuring consistent power delivery, efficient energy conversion, and reliable operation in industrial cutting and welding applications.

Active Doped Fiber (Amplifying Fiber)
This is the core of the fiber laser source.
Typically uses ytterbium-doped fiber (YDF) for wavelengths around 1080–1085 nm.
The fiber is pumped with optical energy to amplify the seed laser signal.
Function:
Generates a high-power, stable laser beam
Provides excellent beam quality (low M² value)
Ensures consistent energy delivery for cutting and welding
Diode Pump Module
An array of high-power laser diodes that inject pump light into the doped fiber.
Higher pump power → higher laser output power.
Characteristics:
High electro-optical conversion efficiency
Long service life (20,000–50,000 hours)
Stable performance in industrial environments
Pump Combiner
Combines optical power from multiple pump diodes into a single active fiber.
Ensures uniform energy distribution and stable amplification inside the fiber.
Seed Laser / Oscillator
Generates the initial low-power laser signal, which is later amplified through the doped fiber.
Common types:
Provides stable starting conditions for high-quality laser output.
Optical Isolator
Protects the source from back-reflection, especially when processing reflective materials like aluminum or copper.
Benefits:
Output Fiber / Optical Interface (QBH/QCS/QD)
Transfers the amplified laser beam to the cutting or welding head.
Requirements:
High thermal and optical durability
Strong mechanical stability
Consistent beam transmission
Common standards include QBH, QCS, and QD.
Cooling System
High-power lasers require an efficient cooling system, usually water-cooled via chiller.
Functions:
Stabilizes diode pump temperature
Extends component lifespan
Maintains beam quality and output power stability
Control Unit / DSP Driver
The electronic controller that manages the entire laser source.
Controls:
Interfaces:
Intelligent Protection System
Built-in safety protections ensure reliable operation:
Over-current / over-voltage protection
Over-temperature shutdown
Low water-flow protection
Back-reflection protection
Real-time fault alarms
These mechanisms guarantee safe, stable, and long-lasting performance of the fiber laser source.
Contact infomation:
LECI Co., Ltd
Room 1901, Saigon Trade Center, No. 37 Ton Duc Thang Street, Saigon Ward, Ho Chi Minh City, Vietnam
Long Bien, Ha Noi, VN.
Phone: (+84) 901442689 (WhatsApp)
Hotline: 02822202988
Website: lecilaser.com