Furukawa Electric Announces Sampling of Micro ITLA For 400 Gb/s Optical Coherent Transmission

   Furukawa Electric Announces Sampling of Micro ITLA For 400 Gb/s Optical
                            Coherent Transmission

PR Newswire

LONDON, Sept. 23, 2013

LONDON, Sept. 23, 2013 /PRNewswire/ -- ECOC 2013, Booth #525 - Furukawa
Electric Co., Ltd. has developed a micro Integratable Tunable Laser Assembly
(ITLA), a key component in ultrahigh-speed optical digital coherent
transmission devices operating at 400 gigabits per second (400Gbps). This
transmission device is now being introduced globally with an initial sampling
and full production planned in the near future.

The new micro ITLA product will be exhibited at the European Conference and
Exhibition on Optical Communication (ECOC) to be held September 22-26 in
London, United Kingdom.

Background of the Development:

Global network traffic continues to grow at a phenomenal rate. The
telecommunications industry is accelerating the deployment of 100 Gbps, or
even faster 400 Gbps, transmission systems, and converging on optical digital
coherent technology. These new systems use multi-level modulation techniques
such as 16 bit Quadrature Amplitude Modulation (QAM) and quadrature phase
shift keying (QPSK) to improve the special efficiency of the network.

Contents of the Development:

The micro ITLA is a laser light source that has been made smaller and consumes
less electric power, while complying with the same Optical Internetworking
Forum (OIF) standard as the conventional ITLA. Furukawa has developed the
micro ITLA with narrower linewidth, a finer wavelength grid and better
wavelength stability, which are required for 400Gbps digital coherent
transmission and flexible grid in the elastic optical network technology.

Narrower linewidth is required in 16QAM multi-level modulation, which is a
modulation format candidate to be used in 400Gbps digital coherent
transmission, because higher bit rates requires higher coherency to improve
transmission quality. The new ITLA achieves less than 300 kHz of linewidth
through optimization of the structure and processing of the laser chip. In
addition, the new ITLA enables 0.1 GHz flexible grid intervals, contributing
to further improvements in spectral efficiency.

Using its expertise in laser driver circuits and digital circuits, Furukawa
has developed technologies for manufacturing the micro ITLAs enabling a size
reduction to 37.5 x 20 x 7.5 mm, half the size of a conventional ITLA. In
addition, power consumption was reduced by 20 % in comparison with that of
conventional ITLAs, driven by performance improvements in the laser chip.

Major specifications of the developed product:

Item                  Specifications of micro Specifications of conventional
                      ITLAs                   ITLAs
Wave length variable  1528 – 1564 nm (C-band) 1528 – 1564 nm (C-band)
width
                      1570 – 1607 nm (L-band) 1570 – 1607 nm (L-band)
Optical output        16dBm                   16dBm
Linewidth             < 300 kHz               < 500 kHz
Side mode suppression > 40dB                  > 40dB
ratio
Average relative      < -140 dB/Hz            < -140 dB/Hz
intensity noise
Wave length stability < +/-1.5 GHz            < +/-2.5 GHz
Minimum grid          0.1GHz                  25GHz
Power consumption     5 W                     6.5 W
Size                  37.5 x 20 x 7.5 mm      74 x 30.5 x 10.5 mm

About Furukawa Electric Company, Ltd.
Furukawa Electric Co. Ltd. (www.furukawa.co.jp/english) is an $11 billion
global leader in the design, manufacture and supply of fiber optic products,
network products, electronics components, power cables, nonferrous metals, and
other advanced technology products. Headquartered in Tokyo, Japan, Furukawa
operates production facilities on five continents around the globe, including
OFS in the U.S.A., Europe and China.

About OFS
OFS is a world-leading designer, manufacturer and provider of optical fiber,
optical fiber cable, FTTX, optical connectivity and specialty photonics
products. Our marketing, manufacturing and research divisions listen to
customers and work together to provide innovative products and solutions that
traverse many different applications as they link people and machines
worldwide. Between continents, between cities, around neighborhoods, and into
homes and businesses of digital consumers we provide the right optical fiber,
optical cable and components for efficient, cost-effective transmission.

OFS' corporate lineage dates back to 1876 and includes technology powerhouses
such as AT&T and Lucent Technologies (now Alcatel-Lucent). Today, OFS is owned
by Furukawa Electric, a multi-billion dollar global leader in optical
communications. Headquartered in Norcross (near Atlanta) Georgia, U.S., OFS
is a global provider with facilities in Avon, Connecticut; Carrollton,
Georgia; Somerset, New Jersey; and Sturbridge, Massachusetts, as well as in
China, Denmark, Germany and Russia.

For more information, please visit www.ofsoptics.com

SOURCE Furukawa Electric Co., Ltd.

Website: http://www.furukawa.co.jp/english
Contact: PR Contact: Sherry Salyer, OFS Public Relations,
shsalyer@ofsoptics.com; Technical Contact: Takahiro Okada, Furukawa Electric,
t-okada@ch.furukawa.co.jp
 
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