Ansys Optics的动态

?? Interested in the #design of complex spectral #filters in silicon #photonic chips? Join us next Monday 12th, at 16:00 (CET) / 10:00 (GMT-5) at the virtual seminar, where our colleague José Manuel Luque González will discuss the fruitful results in this topic derived from the #collaboration between the National Research Council Canada / Conseil national de recherches Canada and Photonics & RF Research Lab. ? ?? This #project has been developed in the framework of the High-throughput and Secure Networks (#HTSN) Challenge program. ? ? Title of the presentation:?Nanophotonic integrated spectral Bragg filters for telecom and quantum applications ? Join Zoom Meeting https://lnkd.in/dMEwJecW ? Meeting ID: 997 6815 7898 Passcode: 223837 ? Abstract: Integrated optical filters play a crucial role in many applications, including #quantum optics, #microwave photonics, and #telecommunications. Among the diverse filtering solutions, #Bragg grating structures, stand out due to their virtually infinite free-spectral range, high rejection ratios, and narrow bandwidths. This presentation focuses on the design process and experimental demonstration of spectrally tailorable Bragg filters in silicon photonics chips. The discussed devices showcase different spectral behaviors, such as multiple arbitrarily spaced notches for astrophotonics applications, flat-top passband filters designed for LAN-WDM systems, and thermally tuned periodic notches with potential applications in quantum optics. The presentation aims to highlight not only the excellent performance of the demonstrated devices but also the versatility of the proposed design methodology in implementing the optimum filter for each specific application.

Highlights from the EPIC Online Technology Meeting on Integrated Photonics Manufacturing ? The recent EPIC Online Technology Meeting brought together industry leaders and experts from Europe and Taiwan to present the latest advancements in photonics integration. Opened by Ivan Nikiski, Phonics Technology Expert at EPIC, the event featured insightful talks from top companies, including APAC Opto Electronics, Focusight, Wavesplitter Technologies, ficonTEC, and Aerotech. Topics covered a broad range of innovations, from quantum photonics applications to micro-optics and motion control for datacom solutions. ? A notable keynote was delivered by Alexey Kovsh on the transformative potential of Quantum Dot (QD) Lasers for photonic integration. Key takeaways included: ????????????????Optical Isolator Unnecessary: QD lasers naturally resist back reflections, simplifying heterogeneous integration with Silicon Photonics PICs. ????????????????Temperature Stability: Demonstrated high power and efficiency at temperatures above 100°C. ????????????????Extended Reliability with No Early-Life Failures: Preliminary results show that QD lasers avoid early failures, potentially simplifying high-volume manufacturing burn-in procedures. ??????????????? Ability to Build Multi-?? Chips: Facilitates high-yield, high-count DFB arrays, comb lasers, and WDM SOAs with ultra-low noise. ????????????????Better Manufacturability and Cost Effectiveness: GaAs wafer processing is more scalable and less fragile compared to InP-based technologies, benefiting from low-cost 6-inch wafers. ? The presentation emphasized how GaAs-based QD CW DFB lasers could surpass InP-based counterparts in terms of cost, reliability, and production yield. The upcoming shift toward 1600G (8x200G) capacity underscores the importance of these innovations. ? The future of photonics integration is promising, with QD technology paving the way for enhanced performance and reduced operational challenges. ?https://lnkd.in/gP5seJiA #Photonics #QuantumDotLasers #TechInnovation #IntegratedPhotonics #EPICMeeting #DataTransmission

Photonics emerged as a field in 1960 with the invention of the laser, followed by the laser diode in the 1970s and the development of optical fibers for data transmission. These innovations paved the way for the telecommunications revolution and laid the foundation for the internet. ? Although "Photonics" had been coined earlier, it only gained widespread use in the scientific community in the 1980s, coinciding with the adoption of fiber optic transmission by telecommunications networks. Bell Laboratories (Nokia) played a significant role in popularizing the term, and its usage was further solidified with the establishment of the IEEE Lasers and Electro-Optics Society's journal, Photonics Technology Letters. ? Initially centred around telecommunications, Photonics has since expanded to encompass various scientific and technological applications, including laser manufacturing, biological and chemical sensing, medical diagnostics and therapy, display technology, and optical computing. Following the dot-com crash circa 2001, there has been a notable growth in non-telecom photonics applications, driven in part by companies seeking new application areas. The ongoing development of silicon photonics holds the promise of further expanding the field's growth potential. ? Explore the world of Photonics by visiting www.photonicsnl.org #Photonics #Optics #PhotonicsNL #History #knowledge

Overview of high power?semiconductor laser?development?part one As efficiency and power continue to improve, laser diodes(laser diodes driver) will continue to replace traditional technologies, thereby changing the way things are made and enabling the development of new things. Understanding of the significant improvements in high-power semiconductor lasers is also limited. The conversion of electrons to lasers via semiconductors was first demonstrated in 1962, and a wide variety of complementary advances have followed that have driven huge advances in the conversion of electrons to high-productivity lasers. These advances have supported important applications from optical storage to optical networking to a wide range of industrial fields. A review of these advances and their cumulative progress highlights the potential for even greater and more pervasive impact in many areas of the economy. In fact, with the continuous improvement of high-power semiconductor lasers, its application field will accelerate the expansion, and will have a profound impact on economic growth. Diode-pumped solid-state lasers and?fiber lasers Advances in high-power semiconductor lasers have also led to the development of downstream laser technology, where semiconductor lasers are typically used to excite (pump) doped crystals (diode-pumped solid-state lasers) or doped fibers (fiber lasers). Although semiconductor lasers provide efficient, small, and low-cost laser energy, they also have two key limitations: they do not store energy and their brightness is limited. Basically, many applications require two useful lasers; One is used to convert electricity into a laser emission, and the other is used to enhance the brightness of that emission. Diode-pumped solid-state lasers. In the late 1980s, the use of semiconductor lasers to pump solid-state lasers began to gain significant commercial interest. Diode-pumped solid-state lasers (DPSSL) dramatically reduce the size and complexity of thermal management systems (primarily cycle coolers) and gain modules, which historically have used arc lamps to pump solid-state laser crystals. #Optical #photonics #semiconductor #Optics #opticalcenter #SiliconPhotonics #photodetectors #optomechanics #laser Read more: https://lnkd.in/dYzNShWs

?? Unveiling the Power of SPP Waveguides: A Leap Beyond Dielectric Waveguides ?? Dive into the cutting-edge realm of Surface Plasmon Polariton (SPP) waveguides, where innovation knows no bounds! Here's why SPP waveguides outshine traditional dielectric counterparts: 1?? Subwavelength Confinement: SPP waveguides confine light to dimensions well below the diffraction limit, enabling unprecedented miniaturization and integration in nanophotonic circuits. 2?? Enhanced Light-Matter Interaction: With SPPs, light interacts with matter on a whole new level, promising breakthroughs in biosensing, healthcare diagnostics, and environmental monitoring. 3?? Low Losses, Long Propagation: Enjoying minimal losses and extended propagation lengths, SPP waveguides offer efficient light transmission essential for telecommunications and optical interconnects. 4?? Tailored Dispersion: Customize dispersion characteristics for specialized functionalities, from dispersion compensation to pulse shaping in ultrafast optics. ?? Applications Abound: ? On-Chip Integration: SPP waveguides drive the development of compact and efficient photonic circuits. ? Sensing Platforms: Enable ultrasensitive molecular detection and label-free biosensing. ? Nanophotonic Devices: Power a diverse array of innovations in imaging, spectroscopy, and beyond. Excitingly, I've simulated SPPs on a single metal-dielectric interface using COMSOL Multiphysics, shedding light on their remarkable potential. In this captivating GIF, witness the magic as light interacts with matter at a nanoscale level along a Silver-Silicon interface. Join me in redefining the boundaries of photonics with SPP waveguides! ?? #SPPWaveguides #Photonics #Plasmonics #Nanotechnology #Innovation

?? Graphene Photodetectors: A New Era of High-Speed Innovation ?? This innovative study highlights a major development in photodetector technology using monolayer graphene. Researchers from the Institute of Electromagnetic Fields (IEF) at ETH Zurich revealed a groundbreaking device with a self-powered 3 dB bandwidth of 420 GHz, making it one of the fastest photodetectors in the world. Key highlights: Photothermoelectric-induced currents for ultra-fast performance Metamaterial design enhances light absorption and allows dual-wavelength detection CMOS-compatible with integrated demultiplexing These research advancements are shaping the future of high-speed photodetectors and cutting-edge optoelectronics. Click below to read more: https://lnkd.in/e8xYJMdG #GrapheneTech #Photodetectors #CVDGraphene #Optoelectronics

Happy DAY OF PHOTONICS! On this Day of Photonics, we're excited to share how we're leading the next wave of technological advancements. From Ultra-Low-Loss (ULL) fiber optic technology to breakthroughs in quantum photonics, the future is bright - and Diamond is at the forefront. ULL fiber optics are revolutionizing the industry by enabling near-zero signal loss, which is critical for quantum computing, long-distance communications and cutting-edge applications where precision and efficiency are non-negotiable. In tandem, quantum photonics is poised to change the landscape of computing, sensing and secure communications. At Diamond, we're not just witnessing these advances - we're actively contributing to them. In addition to our expertise in fiber optic interconnects, we've made significant investments in new cleanroom facilities to support the highest quality manufacturing and cleaning processes for these transformative technologies. These state-of-the-art cleanrooms ensure that we can meet the rigorous standards demanded by the industries we serve. Join us as we continue to connect tomorrow's technologies today. #WeAreWellConnected #DayOfPhotonics #Photonics #Optics #Cleanroom

Heroica Technologies, in collaboration with the Air Force Research Laboratory and CREOL, The College of Optics & Photonics, published a review of bio-inspired #photonic and #plasmonic systems for gas #sensing. Naturally occurring designs, like the Morpho butterfly, can serve as amazingly impressive high-sensitivity, high-selectivity sensors. "Unlike sensors based on conventional refractive and diffractive optics, photonic sensors detect analytes using light-matter interactions of periodic nanostructures, plasmonic interactions, or combinations of the two." In this review, we take a deep dive into: 1. Improvements to sensitivity and selectivity when disorder is introduced in periodic structures; 2. Performance bumps provided by the addition of plasmonic enhancements; 3. Computational and analysis techniques to realize bio-inspired nanostructures. Heroica Technologies develops next-generation photonics for energy, sensing, imaging, computing, and more. Engage us to support the design, analysis, fabrication, and testing of your next-generation photonic systems. https://lnkd.in/gNqbBavQ

Understand the wavelengths of 850nm, 1310nm and 1550nm in optical fiber Light is defined by its wavelength, and in fiber optic communications , the light used is in the infrared region, where the wavelength of light is greater than that of visible light. In optical fiber communication, the typical wavelength is 800 to 1600nm, and the most commonly used wavelengths are 850nm, 1310nm and 1550nm. When fluxlight selects the transmission wavelength, it mainly considers fiber loss and scattering. The goal is to transmit the most data with the least fiber loss over the longest distance. The loss of signal strength during transmission is attenuation. The attenuation is related to the length of the waveform, the longer the waveform, the smaller the attenuation. The light used in the fiber has a longer wavelength at 850, 1310, 1550nm, so the attenuation of the fiber is less, which also results in less fiber loss. And these three wavelengths have almost zero absorption, which are most suitable for transmission in optical fibers as available light sources. In optical fiber communication, optical fiber can be divided into single-mode and multi-mode. The 850nm wavelength region is usually a multi-mode optical fiber communication method, 1550nm is a single-mode, and 1310nm has two types of single-mode and multi-mode. Referring to ITU-T, the attenuation of 1310nm is recommended to be ≤0.4dB/km, and the attenuation of 1550nm is ≤0.3dB/km. And the loss at 850nm is 2.5dB/km. Fiber loss generally decreases as the wavelength increases. The center wavelength of 1550 nm around the C-band (1525-1565nm) is usually called the zero loss window, which means that the attenuation of the quartz fiber is the smallest at this wavelength. #Optical #photonics #semiconductor #Optics #opticalcenter #SiliconPhotonics #photodetectors #optomechanics #laser Read more: https://lnkd.in/et5GnyYF

??????-??-????-???? ???????????????? ?????????????????????? ?????????????????? ???????????? ???????? ???????????????????? ?????? ???????? On-chip light sources are crucial for the future of silicon photonics, yet current integration methods lead to higher power consumption and inefficiency. NTT's membrane lasers offer a breakthrough solution, significantly improving performance while reducing chip size and energy demands. ???????????????? ? The proposed DR lasers achieve a minimum threshold current of 0.88 mA, about half of the conventional detuned DFB lasers. ? The new design ensures smooth lasing spectra with side-mode suppression ratios ranging from 51 dB to 43 dB. ? The intermixed quantum well DBR structure enables precise wavelength and phase control, improving overall lasing efficiency. ???????? ?????? ???????? ??????????????: https://lnkd.in/gmGW-76z #SiliconPhotonics #MembraneLasers #QuantumWells #OnChipLightSources #III_VPhotonics