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photonics
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Adding Chirality to Semiconductors Could Improve Light-Based Technology
A robust, scalable method to introduce chirality into the band structure of semiconductors could advance photonic technologies that rely on controlling light polarization, like displays, sensors, and optical communications, by giving scientists simultaneous control over light, spin, and charge.
Chiral materials are often created through exciton-coupling, a process where light excites nanomaterials to form excitons that interact and share energy with each other. Historically, exciton-coupled chiral materials were made from organic molecules. Creating chiral materials from inorganic semiconductors has proven challenging due to the precise control needed over nanomaterial interactions.
Researchers from Cornell University,...
Categorías: Sensores
Lumentum Makes CEO Change
Lumentum Holdings has named Michael Hurlston president, CEO, and a director of the company, effective Feb. 7. Hurlston succeeds Alan Lowe, who has served as the company’s president and CEO since 2015. Lowe will continue as a member of Lumentum’s board of directors and will serve as an advisor to the company.
Hurlston joins Lumentum from Synaptics, where he served as president and CEO and a member of the board of directors since joining the company in 2019. Prior to Synaptics, Hurlston served as CEO and a member of the board of Finisar Corporation, which was a leading optical communications company acquired by Coherent (previously II-VI) in 2019. He also served in a variety of management roles at Broadcom and its...
Hurlston joins Lumentum from Synaptics, where he served as president and CEO and a member of the board of directors since joining the company in 2019. Prior to Synaptics, Hurlston served as CEO and a member of the board of Finisar Corporation, which was a leading optical communications company acquired by Coherent (previously II-VI) in 2019. He also served in a variety of management roles at Broadcom and its...
Categorías: Sensores
Advancing Laser Safety with Updates to Standard Operating Procedures
It is unlikely that anyone who has read the Z136.1: Safe Use of Lasers Standard, or any of the application standards stemming from it, is unfamiliar with standard operating procedure (SOP). By definition, SOP is a formal written description of the safety and administrative procedures to be followed in performing a specific task. In laser safety, SOP typically applies to the laser system operation and alignment.
Unlike the fluorescent bulb, for example, SOP has not evolved over the years even as it is foundational to laser safety. And while it may be logical that the essence of SOP be unchanged, there are nuances to consider, as is true of other laser safety procedural elements. Knowing when an SOP is required is critical to...
Unlike the fluorescent bulb, for example, SOP has not evolved over the years even as it is foundational to laser safety. And while it may be logical that the essence of SOP be unchanged, there are nuances to consider, as is true of other laser safety procedural elements. Knowing when an SOP is required is critical to...
Categorías: Sensores
UV-Curable Polymers Enable Robust Wafer-Level Micro-Optics Fabrication
Polymer refractive microlenses are the core technology in many micro-optical modules, which themselves are critical enabling technologies for an expanse of optoelectronic systems, including those found in cars, smartphones, and wearables. Microlenses in ambient light sensors, diffractive optical elements for structured light generation, and high-precision surface relief gratings in diffractive waveguides — which enable emerging technologies such as 3D sensing and augmented reality glasses — are just some of the functionalities that these refractive optics enable. In the automotive sector specifically, this class of micro-optical modules is used in ultracompact microlens-enabled projector beam headlights and other lighting...
Categorías: Sensores
OFC to Celebrate the International Year of Quantum in Its 50th Year
The 50th iteration of the Optical Fiber Communication Conference and Exhibition (OFC) will take place this year at San Fransisco’s Moscone Center, moving north from its longtime residence in San Diego. From March 30 to April 3, the conference is expected to host more than 13,500 participants from more than 80 countries while featuring more than 600 exhibiting global companies.
The live event’s multitude of highlights and displays will revolve around three exhibition hall theaters, showcasing expert presentations on hot topics such as market watches and data center hyperscaling. As a hallmark of OFC, showcases will place an additional focus on how the latest technology innovations are being used at the conference itself.
...
Categorías: Sensores
A drone’s guiding light
Celestial navigation is a dying art in our world. Sure, summer camp counselors might instruct their younger adventurers that they can locate north by correctly identifying the North Star, Polaris, while on a nighttime hike in the woods. But let’s be honest — no kid forcibly enrolled in this excursion is willingly taking woodland strolls at night for fear of a rogue bear or an encounter with something more supernatural that could be hiding in the shadows.
The stars used to be the primary source of navigation. From sailing to the New World to traveling across great swaths of indistinguishable terrain, if an intrepid adventurer, merchant, or refugee found themselves off track or misdirected with a map, they could always count...
Categorías: Sensores
VueReal Secures $40.5M to Scale Production
Semiconductor technology company VueReal has secured $40.5 million in Series C funding. The funding will allow the company to scale its production capabilities and expand its global ecosystem to support the integration of micro-LEDs into commercial production.
VueReal’s MicroSolid Printing technology supports cost-effective high-volume micro-LED by efficiently transferring LEDs from wafer to backplane. The technology targets consumer electronics, automotive, and healthcare industries. The method supports the production of micro-LED displays and other micro semiconductor devices.
Last year, VueReal made plans to double its manufacturing space and established partnerships with RiTdisplay and Toray Engineering. Additional...
VueReal’s MicroSolid Printing technology supports cost-effective high-volume micro-LED by efficiently transferring LEDs from wafer to backplane. The technology targets consumer electronics, automotive, and healthcare industries. The method supports the production of micro-LED displays and other micro semiconductor devices.
Last year, VueReal made plans to double its manufacturing space and established partnerships with RiTdisplay and Toray Engineering. Additional...
Categorías: Sensores
Glass-Coated Bacteria Form Living Microlenses for Advanced Imaging
Microlenses, micrometer-sized lenses that capture and focus light into intense beams at a microscopic scale, typically require complex, expensive machinery and extreme temperatures or pressures to produce. A bioinspired approach to making microlenses, based on the enzymes secreted by sea sponges, could offer a way to create inexpensive, durable, advanced microlenses for use in medicine, biology, and materials science.
Sea sponges grow glass skeletons made of silica (also called bioglass). This silica skeleton is both lightweight and resilient, allowing the sea sponge to withstand harsh marine environments.
Graduate student Lynn Sidor prepares bacteria cells that will self-assemble their own glass coating by using enzymes from sea...
Categorías: Sensores
Silicon Photonics Brings a Collaborative Lidar-Radar Relationship into View
For decades, end users and systems designers have valued radar technology for its reliability. Especially in adverse weather conditions in which sensors based on other modalities are apt to fail, radar is a dependable technique offering broad application potential.
As a result of this robustness and widespread applicability, radar today is established as a standard sensing system in several high-growth technology sectors. The automotive industry, for example, has been a key driver of radar sensor miniaturization and overall performance improvements. The commercialization of radar for passenger vehicles predates the turn of the century, and radar sensors are also now commonly deployed in advanced driver-assistance systems, including...
Categorías: Sensores
Low-Power Lasers Heat Up Data Storage
Last spring, electronics giant Toshiba announced its plans to ship its first test sample hard disk drives (HDDs) using heat-assisted magnetic recording (HAMR) technology. Toshiba, at the time of the announcement, said that it is targeting 2025 for the shipment.
Courtesy of iStock.com/Remitski.
The decision as well as the technological advancement represent an emerging movement in the data storage and photonics industries. Toshiba’s debut of its HAMR HDDs, with 28 to 30 Tb of storage, follows Seagate Technology’s rollout of similar technology in 2017, following 15 years of research.
With Toshiba and Seagate expecting to be working toward mass-producing HAMR HDDs with 32 Tb of storage capacity by next year,...
Categorías: Sensores
Sharper, Faster, and Smarter: Liquid Lenses Flourish as Next-Generation Optics
The remarkable capabilities of human vision serve as a powerful inspiration to developers of advanced optical systems. Despite its seemingly uncomplicated design, comprising a single lens and offering about ~1 MP of resolution per eye, human vision achieves exceptional performance. For this reason, designers and engineers strive to replicate and even surpass its capabilities.
Courtesy of iStock.com/tein-studio.
Yet while the capabilities of human vision provide a dynamic reference, creating vision systems that deliver high magnification, small pixel sizes, and low f-numbers — especially in low-light conditions — poses substantial challenges. These factors tend to reduce the depth of field, necessitating precise...
Categorías: Sensores
Thulium-Doped Fibers Lead a Charge to the 2-µm Band
Optical fibers are well known and widely used as the transmission medium for optical communications. Due to the rapid increase of technology and service demand that has characterized modern optical data and telecommunications, optical fibers are necessary to use as optical amplifiers for long-haul transmission.
The most suitable example of this evolution was the development of the erbium-doped fiber amplifier. This device consists of a laser-active gain medium that enables the amplification of optical signals of 1.55 µm. Similarly, ytterbium-doped fibers (YDFs) are now an established solution supporting the growth of manufacturing and materials processing, owing to their suitability for high-power generation with a superior beam...
Categorías: Sensores
Complementary combinations
By its definition, the notion of “sensor fusion” allows for the possibility of combining data from one sensing modality with virtually any other. Motion tracking provides a classic trimodal sensor fusion: The fusion of accelerometric, magnetometric, and gyroscopic data delivers precise information relative to location. In this case, the differences in the measurables that each individual sensing modality tracks are quite subtle.
At the same time, the modalities themselves are highly complementary. In combination, data obtained via each type of sensor delivers the utmost precision in determining orientation.
Sensor fusion can be far less nuanced, at least in terms of the sensors used. In 1997, for example, a paper...
Categorías: Sensores
Pasadena City College
LASER-TEC is the Center for Laser and Fiber Optics Education, founded in 2013 by the National Science Foundation (NSF) and headquartered at Indian River State College in Florida. It was established to help meet the goals of educating and sourcing domestic talent in the areas of optics and photonics. As a service to students, recent graduates, and prospective employers, Photonics Spectra runs a profile of one of the LASER-TEC colleges each month.
Pasadena City College’s (PCC’s) curriculum in optical and laser technology (LaserTech) provides students with the applied skills required to work with precision optics, lasers, detectors, electronics, and nanotechnology. Local industrial partners and national laboratories have...
Categorías: Sensores
EO Frequency Comb Design Broadens Bandwidth and Uses Less Power
A new integrated design for electro-optic (EO) frequency combs expands the bandwidth of the comb and significantly reduces its microwave power requirements, compared to previous designs. The integrated EO frequency comb could benefit robotics, environmental sensing, spectroscopy, astronomy, and other fields that require precise, efficient measurement of light.
An international team comprising researchers from École Polytechnique Fédérale de Lausanne (EPFL), the Colorado School of Mines, and the Chinese Academy of Sciences, led by professor Tobias J. Kippenberg, created the EO comb generator using an integrated triply resonant architecture. This architecture features three interacting fields — two optical...
Categorías: Sensores
IHMA Rebrands to IOTA: Week in Brief: 1/31/25
Ortel, a Photonics Foundries enterprise, has successfully transferred its C-band continuous wave laser module platform to the Canadian Photonics Fabrication Centre, a pure-play III-V semiconductor wafer foundry. The transfer assures uninterrupted wafer supply and a smooth transition to markets including lidar, fiber optic sensing, and test and measurement, the company said. Initial customer samples of the laser will be available in February, with fully qualified production device availability expected in Q2 2025.
IOTA chair Mark Deakes. Courtesy of IOTA. HEXHAM, England — International trade body for optics-based anti-counterfeiting technologies the International Hologram Manufacturers Association (IHMA) has rebranded as the...
Categorías: Sensores
SPIE Names 2025 Prism Award Winners
SPIE, the international society for optics and photonics, recognized the top innovations in new optics and photonics products at the 2025 Prism Awards held at Photonics West on Jan. 29. The gala event marked the Prism Awards’ 17th anniversary.
The annual ceremony honored a range of established and emerging companies applying groundbreaking and creative solutions to critical problems in areas such as augmented and virtual reality, sensors, lasers, quantum technology, and biomedical optics solutions. In addition, the Society recognized its second SPIE Catalyst Award recipient, honoring a for-profit company for a specific social or environmentally focused program that has had significant positive impact, either within their...
Categorías: Sensores
Miniature Sensor Detects Spectral Signature via Optoelectronic Interface
A team at Aalto University combined miniaturized hardware with intelligent algorithms to create a microscopic spectral sensor that can accurately identify a myriad of materials. The work of the researchers could make it possible for industries like health care, food safety, and transportation to implement miniaturized spectroscopy, using everyday devices, for various applications.
A high-performance, miniaturized spectral sensor that fits inside a smartphone or wearable device could be used, for example, to monitor changes in an individual’s health, detect counterfeit drugs, or identify spoiled food. Autonomous vehicles could use the sensor for accurate, cost-effective object identification.
Spectral sensing, which...
Categorías: Sensores
Planet Signs $230 Million Agreement for High-Res Satellites
Planet Labs, a provider of remote sensing satellites, signed a multi-year $230 million agreement to expand its partnership with a long-standing Asia-Pacific commercial partner. According to Planet CEO and co-founder Will Marshall, the contract is the company’s largest to date.
Per the agreement, Planet will build and deliver a constellation of new Pelican high-resolution satellites, securing certain capacity on the satellites for the partner, in addition to providing operational services. Planet will leverage the increased capacity of the expanded fleet to serve its own government and commercial customers around the world.
Rendering of a Planet Labs Pelican satellite. Courtesy of Planet Labs.
Pelican, Planet’s next...
Categorías: Sensores
iPronics Raises $21M Series A
Photonic computing company iPronics has raised €20 million ($20.8 million) in a series A funding round. The funds will help accelerate deployment of the company’s Optical Networking Engine (ONE) in AI data centers, enabling fast, scalable, and high-bandwidth communication for energy-efficient AI.
iPronics’ Optical Networking Engine (ONE) is designed to enable artificial intelligence applications. Courtesy of iPronics.
iPronics’ ONE technology offers an optically switched fabric for AI architectures, enabling at-will topology adaptation and extending programmability to physical layer connections. According to the company it provides 1000× faster reconfiguration compared to other optic based approaches,...
Categorías: Sensores
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