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MITSUBISHI ELECTRIC INTRODUCES SEMICONDUCTOR LASER DIODE FOR
2.5GBPS OPTICAL FIBER COMMUNICATION
Diode Enables 2.5Gbps-100km Transmission
at 85 Degree C for First Time
SUNNYVALE, Calif. -- May 27, 2003 -- The
Semiconductor Division of Mitsubishi Electric & Electronics
USA, Inc., today introduced the “ML9xx40 Series” of
Distributed Feedback laser diodes (DFB-LD) for optical fiber
communication.
The ML9xx40 Series, which enables 2.5 Gbps-100km transmission in
a zero to 85-degree C temperature range, is expected to be the
top
choice for optical fiber communication equipment due to its low
cost, miniature size and low power consumption, a result achieved
by eliminating temperature control. Unprecedented LD mass production
is scheduled for late summer.
“Optical fiber communication traffic in metropolitan area networks
is increasing with the growth of ADSL[1]
and FTTH[2],” says Daniel Chen, vice
president and general manager for the Semiconductor Division at
Mitsubishi Electric US. “Since the transmission equipment used
in these networks is increasingly shrinking in size and cost, our
semiconductor laser diode, which operates without a cooler and performs
well in high temperatures, will be in high demand. And with increasing
traffic, higher bit rates (higher than 622Mbps or 1.25Gbps) will
be required.”
The ML9xx40 Series provides stable, single wavelength operation
under 2.5Gbps modulation over a wide temperature range because a
quarter-wavelength phase-shifted grating is used in this DFB-LD.
A transmission of up to 100km is possible at 1.55mm laser operation
wavelength, where the optical power absorption in the optical fiber
is minimum.
“Although operation up to 85 degrees C was difficult in a quarter-wavelength
phase-shifted DFB-LD operated at 1.55mm wavelength, we succeeded
by optimizing the device structure,” said Chen. “Because
this DFB-LD has abundant characteristics under higher temperature,
it performs well even in small transceiver equipment such as SFF[3]
and SFP[4]. Finally, low cost was achieved
by utilizing standard TO-CAN packaging.”
[1] Asymmetric Digital Subscriber Line
[2] Fiber To The Home
[3] Small Form Factor
[4] Small Form Factor Pluggable
Availability
Samples will be available in June 2003 with mass production
scheduled to start in August.
# # #
About Mitsubishi Electric & Electronics USA, Inc.
Mitsubishi Electric Corporation offers a diverse range of optoelectronic
products for SDH, SONET, 10-GbE, CWDM, DWDM, data communication, and
OTDR applications, as well as passive optical network systems, test
and instrumentation applications, and CATV distribution. The company’s
optoelectronic product families conform to leading-edge current and
future multi-source agreements such as XENPAK, X2, XPAK, and XFP.
Mitsubishi Electric markets its optoelectronic products in North America
through the Semiconductor Division of Mitsubishi Electric & Electronics
USA, Inc.
Mitsubishi Electric Corporation and its North American affiliate,
Mitsubishi Electric & Electronics USA, Inc., are world-class suppliers
of semiconductors and electronic products for communications, industrial,
Internet-enabled, and automotive applications. The company is ranked
among the top-tier worldwide semiconductor suppliers and offers an
extensive range of semiconductor components for the North American
marketplace, including optoelectronic and microwave/RF devices.
Additional information on the Mitsubishi Electric Semiconductor Division
is available at http://www.mitsubishichips.com.
Trademark Information
Mitsubishi and the Mitsubishi logo are registered trademarks of Mitsubishi
Electric Corporation in the U.S.A., Japan, and other countries.
Keywords
ADSL, FTTH, DFB-LD, Asymmetric Digital Subscriber Line, Fiber-to-the-Home,
Distributed Feedback Laser Diodes
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Editorial Contacts:
Julie Callaghan
Semiconductor Division
Mitsubishi Electric & Electronics USA, Inc.
Sunnyvale, CA
Phone: (408) 774-3136
Julie.Callaghan@meus.mea.com
Mark S. Scott
Public Relations Manager
Mitsubishi Electric & Electronics USA, Inc.
5665 Plaza Drive
Cypress, CA 90630
Phone: 714.220.6896
Fax: 714.229.3854
mark.scott@meus.mea.com
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