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Single-Frequency Fiber Lasers — Ultra-narrow linewidth, high stability

Single-Frequency Fiber Lasers — Ultra-narrow linewidth, high stability

Custom solutions for LiDAR, sensing, quantum and communications.

Our Product
Techwin — World-class Single-Frequency Fiber Laser Solutions

Techwin — World-class Single-Frequency Fiber Laser Solutions

Techwin is a high-tech enterprise specializing in high-performance fiber lasers, amplifiers, and laser sources for scientific and industrial use. With 20+ years of innovation, it leads in single-frequency fiber laser technology. Its ultra-stable, low-noise lasers serve applications in sensing, quantum tech, LiDAR, and communication across 30+ countries worldwide.

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Product Families

Explore our main product lines — single-frequency lasers, seed lasers, high-power sources and more.

What is a Single-Frequency Fiber Laser?

What is a Single-Frequency Fiber Laser?

A single-frequency fiber laser emits light at a single longitudinal mode with ultra-narrow linewidth (typically Hz to kHz), providing exceptional spectral purity, phase stability and low noise. These lasers are engineere

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What is a Seed Fiber Laser?

What is a Seed Fiber Laser?

A seed fiber laser acts as the initial light source (or “seed”) for high-power laser systems. It produces a highly stable, narrow-linewidth laser output that is later amplified through fiber amplifiers. These lasers prov

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High Power Single-Frequency Fiber Lasers

High Power Single-Frequency Fiber Lasers

High precision industries rely on high power fiber laser systems for demanding applications that require exceptional beam quality, stability, and narrow linewidth. The High-Power Single-Frequency Fiber Lasers from Techwi

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What Is a Wavelength Conversion Laser?

What Is a Wavelength Conversion Laser?

A wavelength conversion laser system outputs wavelengths different from the fundamental source by using nonlinear optical processes such as SHG, THG and frequency mixing. Techwin’s wavelength conversion family delivers n

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Broadband and ASE Light Sources

Broadband and ASE Light Sources

Techwin presents a complete range of broadband & ASE light sources engineered for research, industrial testing, fiber sensing and biomedical imaging. These systems provide stable, low-coherence optical illumination with

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Fiber Amplifier and Optical Amplification

Fiber Amplifier and Optical Amplification

A fiber amplifier is a core component in modern photonics, enabling stable, low-noise and high-efficiency amplification for scientific, industrial and communication applications. This category provides an overview of Tec

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Laser Testing and Measurement

Laser Testing and Measurement

Laser performance evaluation is an essential requirement for research labs, industrial fabrication units, material processing facilities, and scientific institutes. A stable and accurate measurement setup ensures that ev

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Super Luminescent LED (SLED) Solutions – High-Stability SLED Light Source

Super Luminescent LED (SLED) Solutions – High-Stability SLED Light Source

Super luminescent LED (SLED) technology provides broadband, low-coherence illumination ideal for interferometry, fiber sensing and OCT imaging. Techwin supplies stable SLED modules across 1.0 µm, 1.5 µm and 2.0 µm bands

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Proven Solutions

Applications & Solutions

Explore real-world applications where Techwin lasers deliver measurable results, higher precision, and reliable performance across advanced industrial and scientific environments.

LiDAR Systems icon

LiDAR Systems

Fiber Lasers for LiDAR Systems

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Quantum Technology icon

Quantum Technology

Fiber Lasers for Quantum Technology

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Fiber Optic Sensing icon

Fiber Optic Sensing

Fiber Lasers for Optical Sensing

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Gravitational Wave Detection icon

Gravitational Wave Detection

Lasers for Gravitational Wave Detection

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Optical Communication icon

Optical Communication

Fiber Lasers for Optical Communication

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Biomedical & Diagnostics icon

Biomedical & Diagnostics

Lasers for Biomedical Applications

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Spectroscopy & Photonics icon

Spectroscopy & Photonics

Fiber Lasers for Spectroscopy

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Material Processing icon

Material Processing

Fiber Lasers for Material Processing

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Atomic Physics Research icon

Atomic Physics Research

Fiber Lasers for Atomic Research

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Satellite Communication icon

Satellite Communication

Lasers for Satellite Communication

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Why Techwin — Trusted Worldwide

20+ Years of Experience
Independent IP & Patents
Exported to 30+ Countries
ISO / QC Certified
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Technical Highlights

Key specifications that define Techwin’s high-performance laser excellence.

Ultra-narrow Linewidth

Sub-kHz spectral purity for precision optical coherence measurements.

Low Phase & Intensity Noise

Advanced design ensures industry-leading noise suppression.

Wavelength Bands

Available in 1.0 µm, 1.5 µm and 2.0 µm spectral regions.

Power Range

Configurable output: mW to multi-Watt systems (0.05 – 500 W).

High Stability

Thermally controlled design for 24/7 operation in critical environments.

Continuous Innovation

20+ years of R&D in single-frequency fiber laser technology.