Telecoms ♦ news digest
control plane, delivers a network with the highest wavelength flexibility and a low cost of ownership.
“Building our network with Infinera’s solutions has enabled us to seamlessly upgrade to higher data- rates and provision services quickly and easily,” says Jose Ramon Vela, CEO of Telefonica Global Solutions.
“Our positive experience with Infinera’s solutions assures us that our investment in the DTN-X will enable us to scale into the future and continue to turn up services more quickly for our customers. Infinera’s 500 Gb/s long-haul super-channels allow us to continue delivering quality and reliability of service throughout our entire network, and allows us to extend the productive life of our submarine cable,” adds Vela.
“The Infinera DTN-X platform gives Telefonica the flexibility to efficiently accommodate their network demands, allowing them to deploy 500G long-haul super-channels,” notes Tom Fallon, Infinera CEO. “The DTN-X offers integrated DWDM transport and OTN switching without compromise coupled with industry leading 500G photonic integrated circuits, together enabling Telefonica to deploy services quickly to improve their competitive position in the marketplace.”
Telefonica International Wholesale Services has been upgrading its submarine network throughout South America using the Infinera DTN platform, based on 100 Gb/s PICs and 40Gb/s coherent modulation, since 2009.
Milmega launches GaAs telecom amplifiers
The firm’s new gallium arsenide amplifiers are suited for the wireless communications industry
Milmega, now a part of Teseq, is offering a new amplifier product range designed to meet test requirements within wireless testing frequency bands.
The AS0728 family of amplifiers has a frequency range of 700 MHz to 2.8 GHz. Available in 25 W, 50 W, 100 W and 170 W P1 dB power levels, these new amplifiers are ideal in the wireless
Milmega amplifier
The AS0728 broadband amplifiers feature an innovative design that utilises the latest GaAs Field Effect Transistor (GaAs FET), providing unique characteristics and benefits that differentiate them from other solid state amplifiers. This new product range includes an array of input/output and sample port options as well as cost-effective power and bandwidth upgrades.
The new amplifiers feature a rear mounted 15-pin, D-type connector that enables remote operation via TTL commands, while providing access to an output signal sample. The AS0728 has an operating temperature range of 00C to 400C and a storage temperature range of -400C to 700C.
A built-in protection system that guards against overheating is featured in all units. Should the internal temperature exceed 700C, amplifier blocks automatically switch off to avoid damage to the unit.
The amplifiers are a standard 3U high, and can be combined in rack mounted form to build higher power amplifiers. These units also offer a bench case option.
As with all of Teseq’s Milmega amplifiers, the AS0728 product range is covered by a five-year parts and labour warranty and is backed by the company’s global support network.
Ammonia speeds MBE growth of GaN-on-silicon HEMTs
Gallium nitride transistors with good structural and electrical characteristics have been produced by ammonia MBE on a 100 mm silicon substrate
October 2012
www.compoundsemiconductor.net 79
communications industry where high reliability, excellent linearity, power density and leading performance are required.
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