Made in Switzerland.
A new milestone on the way to Green light sources for HUD, Augmented and Mixed Reality applications!
May 27., 2023: In a recent article published by AIP, researchers from EXALOS have showcased cutting-edge technology for superluminescent light emitting diodes (SLEDs) that emit green light, based on InAlN n-type claddings. The performance of these devices, including electro-optical characteristics, optical confinement, and substrate leakage, has significantly improved when compared to traditional devices based on AlGaN claddings.
EXALOS joins LaSAR Alliance for Augmented Reality Wearable Devices
April 20., 2022: EXALOS, the world’s leading developer of visible
Superluminescent Light Emitting Diodes (SLEDs) and highly customized semiconductor light sources, announces that it has joined the recently formed LaSAR (Laser Scanning for Augmented Reality) Alliance, an international federation of leading industry groups and consortia dedicated to the advancement of augmented reality (AR) eyewear applications.
Next generation RGB edge-emitting lasers for Augmented Reality
Red, green and blue edge-emitting lasers with milliwatt output powers and exceptional efficiency are lining up for augmented-reality applications. Recently, we have developed visible laser diodes that break new ground for low drive currents and minimal power consumption. These strengths, in demand for next-generation AR displays, give our lasers the credentials to compete in this sector with VCSELs, which are undoubtedly promising but less mature.
A compact RGB LD module – a light source for AR displays (July 2021)
EXALOS presents a miniaturized, full-color RGB light source module for near-to-eye display systems, incorporating three semiconductor laser diodes (LDs) that are integrated on a free-space, micro-optical bench together with collimation optics and wavelength filters. The ultra-compact package delivers up to 10 mW per color at low power dissipation values of 640 mW and provides low-divergent output beams.
High-Power 840-nm ASE Source Using an SLED-SOA MOPA Architecture (Conference Paper · July 2019)
We are demonstrating a high-power light source, where ASE from a SLED is amplified by a semiconductor optical amplifier in order to generate power levels of 100-300 mW in free-space. The optical architecture of this light source resembles a master oscillator power amplifier (MOPA) configuration.
A compact RGB SLED module – a light source for AR displays (Conference Paper June 2019)
EXALOS VISIIIBLESRGB: EXALOS presents the first light source module that is realized with RGB SLEDs in a compact 14-pin butterfly housing for speckle-free display applications. The module provides a free-space output with collimated RGB beams that are colinearly aligned having 10 mW output power per color.
Quality Comparison of potential light sources for Holographic Projection
The test, published in Scientific Reports 7: 5893, compares the Coherence properties of the following 5 light sources and their effect on the image sharpness and speckle of holographic displays.
EXALOS Introduces RGB Modules for Augmented Reality and Head-up Display Applications
EXALOS has expanded its product portfolio with the introduction of a compact RGB SLED module that will enable the advancement of micro-display architectures for augmented reality (AR) and head-up displays (HUDs).
Highly Efficient RED SLEDs at 625-650 nm
Superluminescent light-emitting diodes (SLEDs) are very attractive as compact, highly efficient light sources for various applications in the visible red spectral region. EXALOS investigated the electro-optical performance of SLEDs operating at center wavelengths of 625-650 nm with interesting results.
Superluminescent LEDs enter the Mainstream
SLEDs, also known as high-power LEDs and “laser diodes operating below threshold,” are semiconductor light sources that have a broadband output optical spectrum, like LEDs, at high power levels, like laser diodes. This combination is valuable in a variety of applications, and as a consequence, these emitters are finding commercial use.
GaN-based Superluminescent LEDs with long lifetime
EXALOS VISIIIBLESRGB are designed as reliable high-performance light sources with a long life span. Stable electrical characteristics during the whole lifetime are one of the most essential features for the acceptance of the emerging new generations of next-to-the-eye display technologies.
Bridge the Gap! Superluminescent LEDs.
Modern Superluminescent LEDs offer distinct optical attributes compared to LEDs and laser diodes and are the preferred choice for imaging applications that call for reduced speckle and minimal interference noise.
RED SLEDs: The best wavelength for human eyes
The sensitivity of the human eye is rapidly decreasing for the red spectral region with a slightly increasing wavelength. Which wavelength in the red spectral range would be the best for modern lasers and SLEDs.