compound semiconductor ♦ news digest
3S PHOTONICS, world-leading French manufacturer of optical and optoelectronic components for telecommunications networks, today announced the successful 32Gbit/s transmission over 20km of singlemode fiber without dispersion compensation using an AMOOFDM1 modulation of its new 1915 LMA Series of Next-Generation directly modulated 1550nm high bandwidth analog laser module.
This 1915 LMA prototype, presenting a 17GHz bandwidth and a +10dBm output power was tested by Orange Labs in Lannion (France) within the EPOD2 telecom project, sponsored by the French National Research Agency – ANR.
4 months after demonstrating a 19Gb/s transmission over 25 km using Discrete Multi- Tone modulation (DMT), fully satisfactory 40Gb/s back to back test and 32Gbit/s transmission over a 20km single-mode fiber link was experimentally demonstrated using Adaptively Modulated Optical OFDM signal (AMOOFDM) combined with a power/bit loading algorithm. The AMOOFDM signal contains 255 subcarriers spread over 12GHz. Transmission was achieved without any chromatic dispersion compensation and using a 35GHz bandwidth PIN-based receiver module for direct detection.
These very promising experimental results reinforce the credibility of using OFDM modulation applied on a directly modulated analog laser module as a key contributor to design the Next-Generation of low cost broadband optical access networks.
TRIQUINT BEGINS PRODUCING INDUSTRY’S FIRST 40 & 100 Gb/s
2010-03-22
TriQuint’s Modulator Driver PAs Offer Best-in- Class, ‘Greener’ Power Usage for 40 Gb/s & Emerging 100 Gb/s Optical Networks
TriQuint Semiconductor a leading RF product manufacturer and foundry services provider, today announced that it has begun high- volume production for major optical network manufacturers of new driver amplifiers, including the market’s first surface-mount technology (SMT) 40 and 100 Gb/s (gigabits per second) devices. TriQuint products ease assembly and significantly reduce power consumption for ‘greener’ wideband high-speed optical networks.
TriQuint’s new modulator drivers will be shown at the Optical Fiber Communication (OFC) Conference and Exhibition (March 22-25) in San Diego, CA (USA), Booth 1105. TriQuint’s TGA4943-SL driver will also be featured in the Optical Internetworking Forum’s (OIF) showcase at the 2010 OFC exhibition. TGA4943-SL, the industry’s first 40 and 100 Gb/s surface mount driver, is ‘green’ technology in action since it operates using half the power of other devices: just 1.7 Watts. The TGA4943- SL is also available in an adaptive module for compatibility with legacy systems.
Another new device, the TGA4826-SM, was selected as a key component of the fiber system that powers Europe’s first 100 Gb/s link, which entered service in late 2009. TriQuint’s new modulator driver is ideally suited for optical network applications that need high drive combined with high linearity. The TGA4826- SM wideband amplifier offers very low power consumption (dissipation) and is available in a standard 6x6mm package.
In addition to announcing production of its 40 and 100 Gb/s modulator drivers, TriQuint is ramping its new smaller, low-power driver amplifier, TGA4956-SM, that offers
April/May 2010
www.compoundsemiconductor.net 199
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