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Week In Review: Manufacturing, Test


President Biden signed an executive order on Sept. 15, limiting foreign investments in U.S. technology by "competitor or adversarial nations" that are deemed a threat to national security. In the past, the Committee on Foreign Investment in the United States (CFIUS) largely limited its actions to the sale of U.S. companies. The new directive expands that to include investments involving "U.S. s... » read more

More Efficient On-Chip Laser Frequency Comb (Harvard)


A new technical paper titled "High-efficiency and broadband on-chip electro-optic frequency comb generators" was published by researchers at Harvard, Stanford, Caltech, and Hyperlight. The research claims the electro-optic frequency device is 100% more efficient and has 2X the bandwidth of previous technology.    According to Harvard's news release, "the latest research applies the two con... » read more

Choosing The Right Photonic Device Design Software


There are many factors to consider before deciding which software to use for photonic device design. To narrow the field, it can be helpful to ask these key questions as you investigate and compare software functionality. • Does the software provide enough flexibility to model and analyze products that offer the best solution to likely and possible design goals? • Is the simulation ca... » read more

CogniFiber: Photonic Computing


Computing with light has many advantages. It's fast, cheap, and it doesn't generate much heat. But it's also difficult to make it work, and it has a number of challenges that are specific to photonics. CogniFiber, an Israeli startup, says it has solved many of these issues. The company uses photonics over fiber, and it has introduced a glass-based chip. “We use light as a data conveyor ... » read more

Fully CMOS-compatible Ternary Inverter with a Memory Function Using Silicon Feedback Field-Effect Transistors (FBFETs)


New technical paper titled "New ternary inverter with memory function using silicon feedback field-effect transistors" was published from researchers at Korea University. Abstract: In this study, we present a fully complementary metal–oxide–semiconductor-compatible ternary inverter with a memory function using silicon feedback field-effect transistors (FBFETs). FBFETs operate with a pos... » read more

Ultra-Fast Photonic Computing Using Polarization


New technical paper titled "Polarization-selective reconfigurability in hybridized-active-dielectric nanowires" was recently published by researchers at University of Oxford and University of Exeter.  The paper demonstrates "the ability to use polarization as a parameter to selectively modulate the conductance of individual nanowires within a multi-nanowire system. By using polarization as the... » read more

Flip-Chip Integration of a GaSb Semiconductor Optical Amplifier with a Silicon Photonic Circuit


New research paper titled "Hybrid silicon photonics DBR laser based on flip-chip integration of GaSb amplifiers and µm-scale SOI waveguides" by researchers at Tampere University (Finland). Abstract: "The development of integrated photonics experiences an unprecedented growth dynamic, owing to accelerated penetration to new applications. This leads to new requirements in terms of functional... » read more

Research Bits: June 14


Photonic deep neural network chip Engineers from the University of Pennsylvania built a photonic deep neural network on a 9.3 square millimeter chip they say is faster and more efficient at classifying images, with the ability to process nearly two billion images a second. The chip uses a series of waveguides that form 'neutron layers' mimicking the brain. “Our chip processes information ... » read more

MIT: Stackable AI Chip With Lego-style Design


New technical paper titled "Reconfigurable heterogeneous integration using stackable chips with embedded artificial intelligence" from researchers at MIT, along with Harvard University, Tsinghua University, Zhejiang University, and others. Partial Abstract: "Here we report stackable hetero-integrated chips that use optoelectronic device arrays for chip-to-chip communication and neuromorphic... » read more

Compact and Tunable Electro-Optic Modulator for Free Space Applications Modulating Light at Gigahertz Speed


New research paper titled "Gigahertz free-space electro-optic modulators based on Mie resonances" from researchers at Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), in collaboration with researchers at the department of Chemistry at the University of Washington. Partial Abstract "Electro-optic modulators are essential for sensing, metrology and telecommunicatio... » read more

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