Professional Knowledge

Applications of Broadband Light Sources

2025-09-02

Broadband light sources, with their wide spectral coverage and stable output, play a key role in various scientific research and industrial applications. Key applications include:

1. Scientific Research

In fundamental physics, materials science, and chemistry, broadband light sources are essential tools for cross-wavelength experimental analysis, such as materials spectroscopy, spectrometry, spectroscopic measurements, fluorescence, and Raman pre-processing. Their low coherence helps reduce coherent noise, while their stable output power and spectral characteristics improve experimental reproducibility.

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2. Optical Communications

As the core of medical imaging technologies such as optical coherence tomography (OCT), broadband light sources help improve the resolution of tissue imaging. By utilizing a broad wavelength spectrum, OCT systems can generate three-dimensional images of the retina, skin layers, and other tissues, facilitating early diagnosis of diseases such as glaucoma and macular degeneration.


3. Environmental Analysis

Broadband light sources provide illumination for environmental spectral sensing systems, enabling multi-wavelength measurements of gases and particulate matter. Using techniques such as differential absorption spectroscopy, they can identify and quantify gases (such as CO₂ and nitrogen oxides) across different wavelengths, helping to improve the reliability of air quality assessments, climate monitoring, and industrial emission control.

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4. Material Characterization

Broadband light sources are one of the key components of technologies such as Fourier transform infrared spectroscopy (FTIR), which are used to obtain infrared spectrum information covering a wide band. Through FTIR, material composition, coating uniformity and structural defects can be analyzed, which is crucial for the electronics manufacturing industry (such as semiconductor wafer inspection) and advanced materials research and development (such as composite coatings).


Box Optronics provides:

(1) 980nm/ 1030nm/ 1064nm/ 1100nm/ C-band/ L-band/ C+L-band/ 2000nm ASE broadband light sources

(2) 840nm/ 1060nm/ 1310nm/ 1550nm SLD broadband light sources


These broadband light sources have the characteristics of ultra-wide light source, spectral flatness, high stability, high power, and adjustable power.

Contact us for more information!

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