Optical

University of British Columbia researchers are aiming at long-distance entangled quantum networks with a coherent microwave-to-optical photon converter, that can theoretically be fabricated on a silicon wafer. Such a network would have fibre optic long-distance communication, possibly many km long, connecting microwave qubits. “The technology could serve as a translator for quantum computers, enabling them to talk to each other ...

Hamamatsu Photonics has launched a series of avalanche photo diodes that work across 320 to 1,000nm. Sensitivity peaks at 750nm. Called the S17353 series, they share a typical sensitivity of 0.44A/W at 650nm, and the six models vary in photosensitive diameter from 0.2 to 5mm. The smallest has a capacitance of 1pF and can be esxpected to work at 1GHz ...

TDK has demonstrated a fast optical sensor based on a magnetic tunnelling junction – a spin photo detector. The device is extremely fast in turning on – 20ps has been measured when hit by a femtosecond laser pulse. [Ed: an earlier version of this article incorrectly stated ’20ns’] It has a stack of two Co22Fe58B20 magnetic layers separated by a magnesium ...

Researchers from ETH Zurich and its spin-out company Polaritron have created a moduator for infra-red that works up to 1.1THz. It is a modulator with two gold electrodes on a substrate facing each other across 10nm wide slot 10µm long (see artists impression). Inside the slot is a substance only described as a ‘non-linear organic electro-optic material’, and at opposite ...

At Embedded World today, Samtec announced mid-board optical transceivers for embedded and rugged applications, including phased array radar and medical imaging. ‘Mid-board’ describes optical links that replace PCB tracks for very high speed signals. The new transceivers, branded Halo-C, are aimed at PAM4 modulated 56Gbit/s (112Gbit/s in development) per lane links with 16 channels (eight bidirectional). Read all the latest news from Embedded ...

The Optical Transport equipment market is forecast to return to growth of 4% CAGR 2024-29 following a steep decline in 2024 reaching $16 billion by 2029, says Dell’Oro. Cumulative WDM capacity installed is forecast to grow at a 30 percent average annual rate through 2029 when accounting for the extra capacity installed before the pandemic and the subsequent inventory correction ...

Vishay has introduced a 1 Form A solid-state relay with AEC-Q102 qualification and a 100V load voltage, claiming it to be industry’s first. Packaged in low-profile SOP-4 package (5 x 7 x 2.2mm), VORA1010M4 typically turns on and off in 100μs, and operates up to +125°C. “The fast turn-off time is a result of its integrated turn-off circuit, while its ...

Researchers at the University of Tokyo have invented a new component for all-optical computing, that might bring this interesting technology out into the light. Optical computing is tempting but unwieldy technology. In principle it can be inherently parallel – a wavefront is effectively a 2D matrix of intensity (or phase, or polarisation) values, and if this is processed through an ...

OMC has launched a fibre optic transceiver shield for Arduino Uno, designed to work with PMMA (polymer) optical cables up to 25m long, plus demonstration software. Operation is possible at 300, 600, 1,200, 2,400, 4,800, 9,600, 14,400, 19,200, 28,800, 38,400, 57,600 or 115,200bit/s. “The actual fibre optic emitter and receiver pair can operate up to 5M baud – the shield ...

Marktech had revealed the latest in its line of sensors which combine many LEDs of different wavelengths with a photodiode. MTMD142345PDT38 has five LEDs at 1.04, 1.2, 1.3, 1.46 and 1.55μm, plus an InGaAs photodiode sensitive across 600 – 1,750nm, all individually addressable and hermetically sealed into a TO-5 metal can. This short-wave infra-red (SWIR) combinations is “ideal for infrared ...