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Narrow-Linewidth External Cavity Lasers (ECL)

Reaching Narrow Linewidth and High Power Performance with SemiNex External Cavity Lasers

Precision Laser Solutions for OFDR, OCT, and FMCW LiDAR 

 

SemiNex proudly introduces its next-generation External Cavity Laser (ECL) platform—designed to deliver exceptional optical performance for high-precision applications including optical sensing, industrial metrology, and advanced communications. Engineered with ultra-stable narrow-linewidth sources and high output power, this laser family enables state-of-the-art measurement and imaging systems.

 

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ECL Butterfly Key Features
  • Narrow linewidth: 3 kHz to 15 kHz Lorentzian
  • High output power: > 200 mW
  • Central wavelengths: C-band and O-band available
  • Ultra-low noise: Ultra-low Relative Intensity Noise (RIN) and excellent Side Mode Suppression Ratio (SMSR)
  • Superior stability: Excellent wavelength stability with low power dissipation
  • Integrated platform: SemiNex ROSA and SOA chips inside
  • Flexible operation: Single-frequency or wavelength-swept configurations
Applications
  • Optical Frequency Domain Reflectometry (OFDR)
  • Optical Coherence Tomography (OCT)
  • Frequency Modulated Continuous Wave (FMCW) LiDAR
  • High-resolution spectroscopy
  • Optical metrology and interferometry

 

ECL Table 1

 

Wavelength-Swept ECL Module

 

To meet the demands of next-generation sensing and measurement systems, SemiNex offers a fully integrated Wavelength-Swept ECL Module featuring:

 

  • ECL butterfly laser with low-noise driver and integrated sweep control
  • Built-in TEC controller, tuning driver, and CMU electronics
  • Linear wavelength sweep with 99.99999% linearity
  • Sweep ranges: 10 GHz (0.8 nm) and 600 GHz (4.8 nm) at 1550 nm
  • Available in C-band and O-band upon request
  • Compact footprint with fast lead time and easy host integration

 

 

 

ECL Module Drawing

 

 

The module’s architecture simplifies system development by providing all key components—including power, temperature, and tuning control—within a single compact unit. Host communication and TTL synchronization enable seamless operation with external systems.

 

 

ECL Table 2

 

Customized configurations and wavelength options are available. Please contact SemiNex for detailed specifications, lead times, and integration support. An Application Note is available with more information regarding our ECL product lines.

 

 

 

 

ECL-Based Solutions

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