Tag Archives: optical

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 ...

The University of Chicago has built optical waveguides only three atoms thick using molybdenum disulphide, and found them to be an efficient way to transfer light over chip-scale distances. “We were surprised by how powerful this super-thin crystal is,” said University of Chicago professor Jiwoong Park, “not only can it hold energy, but deliver it a thousand times further than ...

Yokogowa has added HCDR (high close-in dynamic range) mode and SMSR (side mode suppression ratio) mode to its AQ6370 optical spectrum analyser. Found in AQ6370E, HCDR mode allows measurement of a single longitudinal mode laser with a high close-in dynamic range – CDR is a metric important when developing lasers and optical devices. SMSR mode is intended to halve SMSR ...

Laird Thermal Systems has created a series of multi-stage thermo-electric coolers for miniature optical packages. MSX Series have cold-side footprints down to 2 x 4mm, and thicknesses down to 3.3mm for two stages, 3.8mm for three stages and 4.9mm for four-stage coolers. It has the “capability to integrate them into various optical packages, including TO-39, TO-46 or TO-8”, according to the ...

Researchers in Japan have exploited resonance to get large amplitude motion from rod-like microcrystals, in a way that could be useful in soft robotics according to Waseda University. Using UV light, they set out to bend a particular type of 2,4-dinitroanisole crystals – chosen because of their large thermal expansion coefficient. The UV wavelength selected matches an absorption peak in ...

A German consortium is looking into short-distance optical quantum key distribution for secure data communication. “Previous research has focused on long-distance secure data communication for applications in the global data infrastructure, for networking government or military facilities, or for information exchange with satellites,” according to research lab Fraunhofer IPMS. “However, the connections to the end user on the last kilometre ...

For hyperscale data centres, preparing for ‘co-packaged optics’ (CPO) Molex has announced a pluggable module for external laser sources, with a cage and blind-mating hybrid optical-electrical connector. It is called Elsis. “Traditional pluggable modules have their optical connections at the user side of the module, creating concerns about eye safety when used with high-power laser sources, such as those planned ...

Yokogawa has launched two optical spectrum analysers that together can cover 1 – 3.4μm for product development and manufacturing. “AQ6375E and AQ6376E are the only grating based OSAs covering SWIR [short wave infra-red] over 2μm and MWIR [mid-wave] over 3μm with world class optical performance,” claimed the company, adding that they have “extreme optical precision to aid development of measurement ...

Aiming at data centres, Ranovus and AMD are demonstrating 800Gbit/s optical comms at OFC 2022. The optical interface and its fibres, emerging from under the aluminium block The optical module co-packages Xilinx Versal ACAP (adaptive compute acceleration platform) and Ranovus’ Odin 800Gbit/s ‘CPO 2.0′ module. Odin is a protocol agnostic optical engine build around Ranovus’ 100Gbit/s/λ monolithic electro-photonic IC and laser ...