Laser ablation occurs when high intensity, ultrashort pulses of light interact with matter. A well-known method used for solar cell manufacturing. There are two main types of solar cells, crystalline silicon, and thin films. Both require precise cutting into small pieces. The use of femtosecond lasers in the manufacturing of solar cells has become increasingly popular due to their ability to create precise and clean cuts with minimal damage. This…
In the realm of distributed acoustic sensing (DAS), where valuable data is extracted from the faint signals backscattered by optical fibers, technological advancements continue to push the boundaries of what’s possible. The use of narrow linewidth lasers has proven to be instrumental in enhancing spatial resolution, extending sensing distances, and expanding the frequency range of DAS systems. Narrow linewidth lasers offer precise and stable wavelength output, making them indispensable components…
Introduction Linearly polarized fiber lasers are required in many applications such as sensing, nonlinear frequency conversion, and for coherent or polarization beam combining. To obtain linearly polarized fiber lasers, a polarizer can be used at the output or inside the fiber laser cavity to select a single polarization. But this technique presents several disadvantages such as increased cost, higher insertion losses, power limitations, and reliability issues. A much more effective…
In a recent article published by AIP, researchers from indie 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. Despite substantial research focused on developing bright, efficient, low-power consumption, and compact RGB light engines for…
Fiber lasers producing ultrashort pulses (also known as ultrafast fiber lasers) offer many advantages over their solid-state counterpart, driving their increasing adoption in a wide range of industrial, biomedical and scientific applications. Most ultrafast laser systems are based on passive mode-locked oscillators, often relying on a saturable absorber that has low loss for high intensities and high loss for low intensities. Different physical phenomena usually occur in the cavity, including…
Background Quantum science is a century-old field of study, but recent technological advancements led to the enablement of new techniques to tap into the endless potential of quantum mechanical properties expressed at the single particle level. One can now exploit the quantum superposition and quantum entanglement principles to setup un-hackable communication links, to detect infinitesimal force shifts, or to solve complex problems that outweigh previous supercomputers. This requires controlling single…
Overcoming QKD Engineering Challenges Quantum Key Distribution (QKD) in quantum communications is a secure communication method that enables two parties to produce shared secret keys used afterward to encrypt and decrypt messages. Based on the principles of quantum mechanics, the process of measuring a quantum system introduces detectable anomalies, allowing for the detection of an eavesdropper. As the government, banking, medical, and other regulated industries work through digital transformation, QKD…
Introduction Short-pulse lasers are used in countless applications, including in material processing, refractive surgery, multi-photon imaging, semiconductor inspection, and a host of scientific uses. For laser manufacturers, this great diversity encourages the development of flexible technology platforms that must be configured according to the needs of end users. Managing this flexibility and these various configurations is often a challenge; in fact, several factors can complicate achieving the target performance in…
In recent years, the market for 2 μm high-power fiber lasers has witnessed remarkable expansion, driven by the emergence of diverse applications. Consequently, there is now a pressing demand for highly reliable and high-performance FBG reflectors as will be discussed in this application note. Introduction Fiber lasers operating within the 2 μm wavelength range are rapidly finding utility in a diverse array of applications, including medical surgery, solid-state laser pumping,…
Fiber Bragg gratings can be used to obtain different wavelength reflectivity profiles that depend on the refractive index pattern that is inscribed in the fiber. By relying on proven in-house design and simulation tools and state-of-the-art grating inscription methods, unique ultra-narrowband fiber-based optical filters can be realized. In addition to a bandwidth (BW) that can be as narrow as 2 GHz or 50 MHz, depending on the type of filter, fiber Bragg…
Red, green and blue edge-emitting lasers with milliwatt output powers and exceptional efficiency are lining up for augmented-reality applications. – BY MARCO ROSSETTI, MARCO MALINVERNI AND ANTONINO CASTIGLIA FROM indie (Former EXALOS) There Are Plenty Reasons … Why you might be looking forward to the augmented reality (AR) revolution. Maybe you want to get your hands on this technology; or maybe you are looking forward to the hike it will…
Schlieren, Switzerland, April, 20, 2022 — indie (former 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. indie has a long and distinguished history in the development…
