Vivid Photonics, are advancing Superluminescent Diode (SLD) technology to power transformative innovations. As a spinout from Tyndall National Institute, Vivid Photonics aim to become a global leader in high-performance photonics solutions that enrich lives.
For more information see www.vividphotonics.com
SLD
Key features:
- A speckle-free source increasing the definition and quality of projected light images
- Currently blue (400-450nm) but also can scale to other wavelengths (green, red, infrared)
- High efficiency (laser quality without the speckle)
- High light directionality (Low entendu) which enables efficient light coupling to target
- Wafer-scale packaging and testing devices which reduce production cost·
- Scaling in power by going to arrays
- Scaling in volume by using 100mm diameter GaN wafers
- Ultrashort pulse
- Currently in development phase so opportunity to influence the design of Vivid Photonics SLD modules
- Flexible light modules for multiple applications

SLD
In a laser diode, the optical waveguide and reflective facets create an optical cavity (resonator) and facilitate the emission of amplified stimulated by overcoming optical losses. The emission spectrum is formed by narrow or multiple narrow bands depending on the laser characteristics.
On the other hand, LEDs devices emit a broadband spontaneous light in all directions and have no amplified gain since the light is not confined in an optical cavity.

SLDs exploit the process of amplified spontaneous emission (ASE) where the light of spontaneous emission is amplified only in a single pass through an optical waveguide as compared to amplification over multiple roundtrips in an LD. Furthermore, any kind of feedback in the optical cavity is avoided in a SLD, resulting in a broadband spectrum with no amplitude modulation (spectral ripple). Contrary to laser diodes, SLDs gain increases with the current even much above the transparency conditions.
Projection display (AR, VR, Projector)

Industrial machine inspection

SLD Direct imaging

High brightness lighting

Microscopy Imaging

3D Printing

Metal welding

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