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Telecoms ♦ news digest


Firecomms RedLink fibre optic components are frequently installed in large industrial enclosures where final cable assembly can be difficult when the products are horizontally aligned with the internal PCB.


In order to provide flexibility for both the final installation on the factory floor and end user maintenance, Firecomms has expanded its RedLink product range to include vertically aligned transmitters and receivers.


“RedLink products are frequently found in large scale industrial equipment such as wind turbines, locomotive traction control units or grid tied converters,” says Hugh Hennessy, Firecomms Vice President of Sales and Marketing. “As manufacturers of these appliances appreciate any opportunity to reduce final assembly and maintenance cycle times, we are happy to respond to our customers’ demands for this greater flexibility by further enhancing our product offering.”


Drop-in compatible with the Versatile Link range of products, Firecomms RedLink product line extends the company’s well-known capabilities for high-speed POF transceivers and interface innovation into highly reliable industrial grade optical transmitters and receivers.


The RedLink product line includes DC-1 Mb, DC-5 Mb, DC-10 Mb, and DC-50 Mb transmitters and receivers, all rated at the extended industrial temperature range of -40°C to +85°C for use in even the harshest industrial environments.


All vertical RedLink devices are now available for sampling through Firecomms’ sales offices and distribution channels.


Digi-Key to distribute MACOM GaAs and GaN products


The global electronic components distributor will supply MACOM’s RF, microwave and millimetre-wave devices


Digi-Key Corporation will globally distribute M/A-COM Technology Solutions (MACOM) products globally.


MACOM offers a wide RF, microwave and millimetre- wave products. The company serves diverse markets, including satellite, radar, wired and wireless networks, CATV, automotive, industrial, medical, and mobile devices. MACOM designs and manufactures standard and custom devices, integrated circuits, components, modules, and sub-systems for its customers .


“Wireless technology is finding more and more inroads March 2014 www.compoundsemiconductor.net 107


into our daily lives,” says Mark Zack, Vice President, Global Semiconductor product at Digi-Key. “As more and more designers look to implement wireless technologies into their products, MACOM’s robust, reliable product offering and long-standing technology legacy will improve Digi-Key’s ability to continue removing barriers to entry into the wireless space and provide tremendous value for our customers around the world.”


MACOM possesses a broad portfolio of over 3000 products, which include diodes, GaAs MMICs, silicon and GaN transistors, and components that enable next- generation internet and modern battlefield applications. These products cover frequencies ranging from DC to 110 GHz.


“This agreement aligns perfectly with MACOM’s renewed focus on our core catalogue products. Digi- Key is recognised by design engineers worldwide for its exceptional service, and this partnership will allow us to leverage their broad customer reach,” says Jack Kennedy, Vice President, Global Sales at MACOM. “Having Digi-Key as an authorized global distributor offers MACOM the opportunity to address our customers’ needs by rapidly getting product into their hands for critical design cycles, thereby enabling improved time to market.


Controlling photons with InGaN quantum dots


By emitting photons from an indium gallium nitride quantum dot at the top of a GaN micropyramid, researchers have created a polarised light source. The device can be used in applications such as energy-saving computer screens and wiretap-proof communications


Polarised light - where all the light waves oscillate on the same plane - forms the foundation for technology such as LCD displays in computers and TV sets, and advanced quantum encryption.


Normally, this is created by normal unpolarised light passing through a filter that blocks the unwanted light waves. At least half of the light emitted, and thereby an equal amount of energy, is lost in the process.


A better method is to emit light that is polarised right at the source. This can be achieved with quantum dots - crystals of semiconductive material so small that they produce quantum mechanical phenomena. But until now, they have only achieved polarisation that is either entirely too weak or hard to control.


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