Superluminescent LED (SLED)
The superluminescent LED (SLED) is a high-brightness broadband light source that combines the wide spectral output of an LED with the high coherence and stability characteristics of a laser. Designed using advanced semiconductor and packaging technology, the SLED delivers low noise, excellent spectral stability, and high optical power.
Its compact and reliable structure makes it ideal for precision sensing, imaging, and measurement applications that require stable broadband illumination with minimal spectral ripple.
Key Features
- Broad and smooth spectral output
- High optical power and low noise
- Excellent spectral stability
- Compact and highly reliable design
Application Areas
- Fiber-optic sensing (FBG, interferometric sensing)
- Optical coherence tomography (OCT)
- Precision measurement and metrology
- Biomedical imaging and scientific instrumentation
Product Information
Superluminescent LED (SLED)
The superluminescent LED (SLED) is a high-brightness broadband light source that combines the wide spectral output of an LED with the high coherence and stability characteristics of a laser. Designed using advanced semiconductor and packaging technology, the SLED delivers low noise, excellent spectral stability, and high optical power. Its compact and reliable structure makes it ideal for precision sensing, imaging, and measurement applications that require stable broadband illumination with minimal spectral ripple.
Key features
Highlights- ✓Broad and smooth spectral output
- ✓High optical power and low noise
- ✓Excellent spectral stability
- ✓Compact and highly reliable design
- ✓Fiber-optic sensing (FBG, interferometric sensing)
- ✓Optical coherence tomography (OCT)
- ✓Precision measurement and metrology
- ✓Biomedical imaging and scientific instrumentation
Applications
Use casesProduct Deep Dive
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Superluminescent LED (SLED)
The superluminescent LED (SLED) is a high-brightness broadband light source that combines the wide spectral output of an LED with the high coherence and stability characteristics of a laser. Designed using advanced semiconductor and packaging technology, the SLED delivers low noise, excellent spectral stability, and high optical power. Its compact and reliable structure makes it ideal for precision sensing, imaging, and measurement applications that require stable broadband illumination with minimal spectral ripple.
Key Features
- Broad and smooth spectral output
- High optical power and low noise
- Excellent spectral stability
- Compact and highly reliable design
Application Areas
- Fiber-optic sensing (FBG, interferometric sensing)
- Optical coherence tomography (OCT)
- Precision measurement and metrology
- Biomedical imaging and scientific instrumentation
Overview — Superluminescent LED (SLED)
A Superluminescent LED (SLED) is a broadband semiconductor light source offering high optical power, wide spectral bandwidth, and very low coherence. SLEDs are ideal for OCT, fiber sensing, metrology, and optical component testing where interference fringes must be minimized while keeping strong coupling into fibers.
Key Characteristics
- Broad spectral output with smooth spectral shape
- Very low coherence to minimize speckle and interference
- High coupling efficiency into single-mode and PM fibers
- Available wavelengths: 840 nm, 980 nm, 1310 nm, 1550 nm (and custom)
- Packaging: butterfly, fiber-pigtailed modules, benchtop instruments
- Thermo-electric control for wavelength/power stability
Applications
SLEDs are widely used in Optical Coherence Tomography (OCT), fiber sensing networks, reflectometry, optical component characterization (FBG testing, WDM verification), biomedical imaging, and OEM instruments that require stable broadband light without coherence-induced artifacts.
Package & Integration Options
- Butterfly packages with TEC & monitor photodiode
- Fiber-pigtailed modules (SM / PM options)
- Compact benchtop units with power control & monitoring
- OEM modules for embedded integration
- Custom wavelength and bandwidth tailoring available
Selection Considerations
When selecting a SLED, consider center wavelength, bandwidth (affects axial resolution in OCT), required output power, fiber type (SM vs PM), thermal control needs, and connector/packaging format to ensure compatibility with your system.
Support & Contact
For datasheets, model selection, or integration assistance, contact our engineering team in Hangzhou City at +86-13958180450. We provide configuration guidance for connector types, thermal settings, and spectrum tailoring.
The superluminescent LED (SLED) is a high-brightness broadband light source that combines the wide spectral output of an LED with the high coherence and stability characteristics of a laser. Designed using advanced semiconductor and packaging technology, the SLED delivers low noise, excellent spectral stability, and high optical power. Its compact and reliable structure makes it ideal for precision sensing, imaging, and measurement applications that require stable broadband illumination with minimal spectral ripple.
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