Mitsubishi Electric Develops 10 Gbps DWDM Electroabsorption Modulator Integrated Laser Diode Module Compliant With XMD-MSA.TOKYO -- Mitsubishi Electric Corporation (President and CEO (1) (Chief Executive Officer) The highest individual in command of an organization. Typically the president of the company, the CEO reports to the Chairman of the Board. : Setsuhiro Shimomura) announced today successful development of a cooling type electro absorption modulator integrated DFB-LD1 (EAM (1) (Enterprise Asset Management) The management and control of the information technology assets within the enterprise. The asset management repository includes a description of the asset as well as contract information pertaining to its acquisition. 2-LD) module for DWDM (Dense WDM) The term given to wavelength division multiplexing (WDM) when significantly more channels were being added. Since WDM is increasingly more "dense" all the time, both terms are used synonymously. See WDM. DWDM - wavelength division multiplexing 3 application. The module is one of the smallest and lowest power consuming in the industry. The DWDM EAM-LD chip (ML9XX44) is mounted in a XMD-MSA4 compatible Transmitter Optical Sub Assembly (TOSA Tosa Historic region of the Japanese island of Shikoku. It dates at least to the Heian period, when Ki no Tsurayuki (868?–945?), editor of Japan's first imperially commissioned poetry anthology, wrote a fictional diary drawing on his experiences as governor of Tosa. ), which is appropriate for 10 Gbps5 - 80km (standard single mode fiber) transmission. 1 Distributed Feedback Laser A type of diode laser that uses diffraction gratings rather than mirrors to create the resonance and oscillation in the cavity. It produces a finer range of wavelengths than a Fabry- Perot cavity. A distributed Bragg reflection laser is a similar technology that uses Bragg gratings. Diode (DFB-LD): Grating is formed in the cavity of the laser diode, which feeds back the light with a specified wavelength. The DFB-LD emits monochromatic monochromatic /mono·chro·mat·ic/ (-kro-mat´ik) 1. existing in or having only one color. 2. pertaining to or affected by monochromatic vision. 3. staining with only one dye at a time. light, which is suitable for the light source in long distance optical communication 2 Electroabsorption Modulator (EAM): A waveguide optical modulator based on quantum-confined Stark effect (QCSE QCSE Quantum Confined Stark Effect ) of quantum well structure. Upon applying a reverse bias voltage to EAM, the absorption coefficient of the quantum well is increased due to shrinkage of its effective band gap 3 Dense Wavelength Division Multiplexing See WDM. (DWDM): A signal transmission technique with multiplexing different wavelengths of light 4 A 10 Gbps Miniature Device Multi-Source Agreement (XMD-MSA): The MSA (Metropolitan Service Area) An urban area with at least 50,000 people plus surrounding counties. There are 306 MSAs and 428 RSAs (rural service areas) in the U.S. MSAs and RSAs are used to allocate cellular licenses. has been created to establish compatible sources of optical modules for use in the small optical transceivers, like XFP XFP 10 Gigabit Small Form Factor Pluggable Module XFP Extra-Fine-Pitch XFP Ten Gigabit Small Form Factor Pluggable , XENPAK and so on 5 10 Gbps: Equivalent to transfer of about 18 Compact Disks of data in one second [TABLE OMITTED] Background and Applications With increased Internet traffic in recent years, demand has been increasing for 10 Gbps optical transmission devices installed in long distance trunk lines and middle distance lines in metropolitan areas. Small form factor optical transceiver devices that are compliant to the XFP industry standard have already started being used for 10 Gbps optical transmission, however optical devices with receptacle type laser diode modules capable of 10 Gbps DWDM optical transmission have been sought to further expand transmission volume. Mitsubishi Electric's new DWDM EAM-LD module is suitable for 10 Gbps small-form-factor optical transceivers like XFP, enabling cost-effective 10 Gbps optical links for long distance (longer than 40 km) and metropolitan-area applications with the high board density. Main Characteristics Low maximum power consumption of 0.5W The new DWDM EAM-LD module can transmit high quality 10 Gbps optical signal with a typical low maximum power consumption of less than 0.8 W. Using Mitsubishi's original high frequency interconnection technology, we have successfully developed a high frequency signal transmission line in the module, which cannot be an influx route of heat outside from the module so as to result in a degradation of its cooling capacity of its thermo-electric cooler. XMD-MSA Compliant We have enhanced interface compatibility of the module by complying with the XMD-MSA specifications. The XMD-MSA specifies both electrical and mechanical interface requirements for the small optical transceiver modules including XFP. In particular, a flexible printed circuit (FPC fpc - A translator from Backus's FP to C. ftp://apple.com/comp.sources.Unix/Volume20. ) on its common electrical interface standard is a main feature of the MSA. The developed module uses a small and efficient thermo-electric cooler, allowing optical transceivers to consume less power. About Mitsubishi Electric With over 80 years of experience in providing reliable, high-quality products to both corporate clients and general consumers all over the world, Mitsubishi Electric Corporation (TOKYO:6503) is a recognized world leader in the manufacture, marketing and sales of electrical and electronic equipment used in information processing and communications, space development and satellite communications, consumer electronics, industrial technology, energy, transportation and building equipment. The company recorded consolidated group sales of 3,604 billion yen (US$ 30.8 billion(a)) in the fiscal year ended March 31, 2006. For more information visit http://global.mitsubishielectric.com (a) At an exchange rate of 117 yen to the US dollar, the rate given by the Tokyo Foreign Exchange Market on March 31, 2006. |
|
||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion