1.5 µm Narrow Linewidth Seed Laser

The 1.5 µm ultra-narrow linewidth seed laser delivers exceptional performance with linewidths compressed to the 100 Hz level. With a specialized resonant cavity and advanced noise-suppression and linewidth-narrowing techniques, it provides highly stable, low-noise output for demanding precision applications.

Key Features

  • Ultra-narrow linewidth with compression down to the 100 Hz level.
  • Advanced linewidth-narrowing and noise-suppression architecture.
  • Specialized resonant cavity design for excellent spectral purity and coherence.
  • Low intensity noise suitable for demanding precision measurements.
  • Excellent environmental adaptability and long-term operational stability.

Application Areas

  • High-precision fiber optic sensing
  • Quantum computing
  • Quantum measurement technologies
1.5µm narrow-linewidth seed laser preview
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Product Information

Performance graph
Specification table

1.5 µm Narrow Linewidth Seed Laser

The 1.5 µm ultra-narrow linewidth seed laser delivers exceptional performance with linewidths compressed to the 100 Hz level. With a specialized resonant cavity and advanced noise-suppression and linewidth-narrowing techniques, it provides highly stable, low-noise output for demanding precision applications.

Bandwidth:Wide-spectrum (multi-λ)Coherence:Low coherence (OCT-ready)Stability:Long-term stable outputForm:Compact, integration-ready

Key features

Highlights
  • Low loss in standard fiber for long-distance configurations
  • High reliability in laboratory and field environments
  • Eye-safer wavelength for many sensing platforms
  • High compatibility with telecom-grade components
  • Excellent coherence and stability over long distances
  • Single-frequency emission with very narrow linewidth
  • High side-mode suppression ratio (SMSR)
  • Low intensity noise for sensitive photonics applications

Applications

Use cases
Used for Low loss in standard fiber for long-distance configurations
Used for High reliability in laboratory and field environments
Used for Eye-safer wavelength for many sensing platforms
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Product Deep Dive

Discover the innovative engineering and superior performance that define our laser systems.

Overview of the 1.5 µm Seed Laser Platform

The 1.5 µm Narrow Linewidth Seed Laser is optimized for low phase noise, high spectral purity, and stable single-frequency performance. Designed for long-distance fiber networks, environmental monitoring, interferometry, and research environments, it delivers exceptional reliability and coherence.

Why the 1.5 µm Range Is Widely Used

  • Low loss in standard fiber for long-distance configurations
  • High reliability in laboratory and field environments
  • Eye-safer wavelength for many sensing platforms
  • High compatibility with telecom-grade components
  • Excellent coherence and stability over long distances

Main Features of the 1.5 µm Narrow Linewidth Seed Laser

  • Single-frequency emission with very narrow linewidth
  • High side-mode suppression ratio (SMSR)
  • Low intensity noise for sensitive photonics applications
  • Stable power and wavelength output
  • Compact fiber-coupled module for easy system integration
  • Integrated temperature and current control electronics

Applications

  • Distributed fiber sensing (DAS, DTS, DFOS)
  • Perimeter and structural health monitoring
  • Pipeline and railway line vibration surveillance
  • Fiber interferometers and coherent detection
  • Optical Coherence Tomography (OCT) research
  • LIDAR and atmospheric detection
  • Telecom testing and photonics research

Technical Advantages

The 1.5 µm platform supports ultra-long coherence lengths, low phase noise, and efficient fiber coupling performance. Compact OEM and benchtop options allow flexible integration into laboratory testbeds or industrial environments.

Typical Technical Specifications

  • Wavelength: centered around 1.5 µm
  • Ultra-narrow linewidth for extended coherence
  • High SMSR for spectral purity
  • Low RIN and minimal frequency drift
  • Various output power levels available
  • Compact, robust fiber-coupled housing

System Integration Benefits

Engineers benefit from stable output, reduced alignment requirements, and consistent long-duration performance. Compatibility with standard modulators, couplers, and filters supports diverse sensing and metrology platforms.

Industries That Use This Laser

  • Telecommunications and coherent communication
  • Environmental sensing and atmospheric studies
  • OCT and medical imaging research
  • University photonics labs
  • Optical component testing
  • Quantum and precision measurement systems

Why Users Prefer This Seed Laser Range

The combination of long-term stability, low noise, and telecom-band compatibility makes this laser ideal for high-precision setups. It delivers reliable, repeatable performance for both industrial and scientific users.

Support and Service

Techwin provides documentation, integration guidance, wavelength selection help, and technical support for research and industrial users. Our Hangzhou City facility ensures consistent quality and reliable operation.

Product Image

The 1.5 µm ultra-narrow linewidth seed laser delivers exceptional performance with linewidths compressed to the 100 Hz level. With a specialized resonant cavity and advanced noise-suppression and linewidth-narrowing techniques, it provides highly stable, low-noise output for demanding precision applications.

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  • Full access to datasheets and performance data.