Broadband Light Sources

What are Broadband Light Sources?

Broadband sources (Superluminescent Diodes) are devices that emit light over a wide range of wavelengths. They provide continuous light across broad spectral regions, making them a key semiconductor device used in a variety of applications. These devices combine the characteristics of laser diodes and light-emitting diodes, emitting high-intensity broadband light across a wide spectrum. This versatility makes them a powerful tool in optical applications.

Main applications of Broadband Light Sources

Broadband Sources emit light over a wide range of wavelengths, typically in the infrared spectrum. Unlike lasers, these devices do not focus on a single wavelength, which makes them less coherent and reduces interference, leading to improved image quality. Broadband Sources also provide more optical power and are less sensitive to feedback, resulting in greater stability. These devices generate light through spontaneous emission, like laser diodes, but without the need for mirrors to create the lasing effect. This broad output makes them suitable for a variety of applications in different industries:

• Medicine: Broadband Sources are widely used in optical coherence tomography, a medical imaging technique that produces detailed cross-sectional images of tissue. They are also used in endoscopy and microscopy to create high-resolution images with reduced noise.
• Fiber-Optic Gyroscopes: Broadband Sources are essential in navigation systems, providing accurate measurements of rotation.
• Optical Sensing: Broadband Sources are used in fiber Bragg grating sensors to monitor strain, temperature, and pressure. They are also used in non-contact measurement systems in industry for accurate surface and distance detection, as well as in environmental monitoring to detect gases or pollutants via spectroscopy.
• Interferometry: The devices’ low coherence makes them ideal for precise measurements, reducing noise and increasing accuracy in scientific and industrial applications.
• Telecommunications: Broadband Sources are used in optical communication systems such as wavelength division multiplexing (WDM) to enable efficient data transmission.
• Optical Inspection: In semiconductor manufacturing, these devices help inspect wafers and detect defects by providing a stable, high-intensity broadband light source.

Key features of Broadband Light Sources

Innolume Broadband Sources are designed to deliver high-performance solutions for a wide range of precision applications. With their broad emission spectrum, high optical power, and flexible packaging options, these diodes ensure superior stability and seamless integration into any optical system. Our Broadband Sources products offer reliable, broadband light output that is essential for various industries. Here are some key features that make our Broadband Sources ideal for advanced technological applications:

• High Output Power:  Our Broadband Sources provide exceptional optical power, exceeding 250 milliwatts, delivering the performance required for demanding applications.
• Minimal spectral ripples: Minimal spectral noise: Our Broadband Sources are equipped with tilted waveguides and advanced anti-reflective coatings, which significantly reduce optical feedback and minimize spectral noise, ensuring stable and high-quality output. The reflectivity of these coatings is less than 0.001%, guaranteeing a clean and clear output signal.
• Broad optical spectrum: With an optical spectrum width of over 100 nanometers, our devices are versatile and suitable for a wide range of applications.
• Flexibility in Integration: Our Broadband Sources provide flexible integration options. They can be mounted on a submount, C-mount, or TO-can. They can also be integrated into fiber-coupled modules such as multi-chip packages to fit your specific system requirements.

The Innolume technical support team is always here to help you choose the right Broadband Source for your needs and discuss any operational issues you may have. If you have any questions, please don't hesitate to contact us.