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1.0 µm Narrow Linewidth Seed Laser
The 1.0 µm ultra-narrow linewidth fiber seed laser is designed for applications requiring exceptional spectral purity and long-term stability. Built on a specialized resonant cavity architecture and enhanced with advanced noise-suppression and linewidth-compression technologies, it delivers laser linewidths reaching the kHz level while maintaining outstanding coherence and reliability.
Key Features
- Ultra-narrow linewidth (kHz level) for high spectral purity.
- No mode hopping and no burst noise for stable long-term emission.
- High side-mode suppression ratio (SMSR) for clean single-frequency output.
- Low relative intensity noise (RIN) to support sensitive detection systems.
- Excellent vibration resistance and wide-temperature stability for field and lab use.
Application Areas
- Gravitational wave detection
- Fiber-optic sensing
- Underwater acoustic detection (hydrophones)
- LiDAR systems
- Coherent communication
- Quantum precision measurement


Product Information


1.0 µm Narrow Linewidth Seed Laser
The 1.0 µm ultra-narrow linewidth fiber seed laser is designed for applications requiring exceptional spectral purity and long-term stability. Built on a specialized resonant cavity architecture and enhanced with advanced noise-suppression and linewidth-compression technologies, it delivers laser linewidths reaching the kHz level while maintaining outstanding coherence and reliability.
Key features
Highlights- ✓Extremely narrow linewidth for precision optical systems
- ✓High spectral purity enabled by stable cavity design
- ✓Low phase noise suitable for sensitive measurements
- ✓Stable wavelength output during temperature variations
- ✓Ideal seed source for high-power fiber amplifier chains
- ✓Wavelength: ~1030 to 1080 nm
- ✓Linewidth: typically < few kHz
- ✓Output Power: from a few mW to ~50 mW
Applications
Use casesProduct Deep Dive
Discover the innovative engineering and superior performance that define our laser systems.
What Is a 1.0 µm Narrow Linewidth Seed Laser?
A 1.0 µm Narrow Linewidth Seed Laser provides a highly stable, low phase-noise optical output suitable for coherent communication systems, amplifier chains, metrology, quantum sensing, and scientific instrumentation. Its narrow linewidth ensures predictable, low-drift spectral performance during long-term operation.
Core Advantages of Narrow Linewidth Seed Lasers
- Extremely narrow linewidth for precision optical systems
- High spectral purity enabled by stable cavity design
- Low phase noise suitable for sensitive measurements
- Stable wavelength output during temperature variations
- Ideal seed source for high-power fiber amplifier chains
Design Characteristics
The seed laser architecture includes fiber-based components for stable beam alignment, temperature regulation for wavelength stability, low-noise electronics for reduced amplitude/phase fluctuations, and compact module designs for easy system integration.
Typical Specifications Range
- Wavelength: ~1030 to 1080 nm
- Linewidth: typically < few kHz
- Output Power: from a few mW to ~50 mW
- Low relative intensity noise (RIN)
- Minimal long-term frequency drift
- Linear or PM polarization options
Why Narrow Linewidth Matters
Applications such as coherent detection, quantum sensing, metrology, and fiber amplifier seeding require optical sources with minimal wavelength drift and ultra-stable spectral purity. Narrow linewidth ensures high measurement accuracy and consistent performance.
Industrial and Research Applications
- Coherent optical communication
- Optical sensing and metrology
- High-precision scientific research
- Quantum experiments and detection systems
- Fiber amplifier seeding for 1.0 µm systems
Integration in Fiber Systems
The fiber-coupled output, predictable wavelength, and low-noise characteristics simplify integration into optical setups. Stable polarization, reduced vibration sensitivity, and compact size support seamless and reliable operation in lab and industrial environments.
Thermal Stability and Long-Term Performance
Temperature regulation maintains wavelength stability across varying conditions. The seed laser preserves stable output even during extended run-times, reducing recalibration and ensuring consistent downstream system behavior.
Low Noise Operation
Internal low-noise circuitry minimizes phase, amplitude, and frequency noise—supporting applications that require clean optical signals, such as sensing, spectroscopy, and coherent communications.
Why Choose This Seed Laser
- Stable wavelength during continuous operation
- High spectral purity and reduced drift
- Superior coherence for precision setups
- Reliable performance for scientific and industrial tasks
- Ideal for custom amplifier systems requiring stable seeding
Service Support and Technical Assistance
Techwin provides product selection guidance, integration support, wavelength tuning advice, documentation, and long-term reliability assistance. Ideal for complex research systems or industrial automation platforms.
About Techwin
This product is manufactured by Techwin in Hangzhou City, known for precision laser components and stable single-frequency systems used in laboratories, scientific institutes, and industrial platforms.


The 1.0 µm ultra-narrow linewidth fiber seed laser is designed for applications requiring exceptional spectral purity and long-term stability. Built on a specialized resonant cavity architecture and enhanced with advanced noise-suppression and linewidth-compression technologies, it delivers laser linewidths reaching the kHz level while maintaining outstanding coherence and reliability.
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