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Product Information

1.3μm band transmitter optical sub assembly LD module for 10Gbps optical transmission

1.3μm band transmitter optical sub assembly LD module for 10Gbps optical transmission
FU-456RDF-9M2
A wide operating temperature range of -20 to 95 degrees is realized with low power consumption
Overview
 
Model Specifications Sample price
(w/o tax)
Shipment date
FU-456RDF-9M2 10Gbps DFB-LD transmitter optical
sub assembly laser modules
20,000 yen July 1, 2009
Carriers have been rushing to expand metro area fiberoptic communications networks to respond to the recent increase in traffic due to the spread of ADSL, Fiber To The Home (FTTH), and other high-speed, large-volume communication services for the residential market. Similarly, there is a growing demand to increase transmission capacity in high-speed storage area networks (SAN), which also use optical fiber to transmit data between storage devices and servers in cases such as transmitting music, images and other digital content, or to be used in high-volume databases for companies.

In these networks, the mechanics and electronics in optical transceivers follow either XFP*1or SFP+*2, which are typical standards for 10Gbps optical transceivers, while the mechanics and electronics in optical devices follow the XMD-MSA*3 standard. With increasing demand for high-density mounting in optical transceivers to release heat from the devices, optical transceivers need to operate with lower power consumption and in a wider temperature range.

*1  10 Gigabit small form factor pluggable module. A standard for optical transceivers made to unify SONET, SDH, Ethernet, fiber channels and other data transmission standards. Module size is 13.3mm (H) x 22.15mm (W) x 77.9mm (D).
*2  Enhanced 8.5 and 10 Gigabit small form factor pluggable module. A standard for optical transceivers made to unify Ethernet, fiber channels and other data transmission standards. Module size is 13.3mm (H) x 13.4mm (W) x 56.5mm (D).
*3  10Gbps Miniature Device Multi-Source Agreement. A unified standard for mechanical and electric interfaces of small optical devices installed in XFP.
Features
Wide operating temperature range with newly-developed DFB-LD in a compact XMD-MSA-compliant package
As it is difficult for equipment to release its internal heat due to the high-density mounting of the optical transceiver, the TOSA is required to operate over a wider temperature range than before.

The FU-456RDF-9M2 incorporates a newly developed distributed feedback laser diode (DFB-LD), which enables the TOSA to be operated at a wide temperature range of -20 to 95 degrees Celsius, a wider range than the -5 to 85 degrees Celsius range available in the company’s previous TOSA model, the FU-456RDF-8M2. Despite the wider operating temperature range, the new model has the same compact package size, also compliant with the 10Gbps miniature device multi-source agreement (XMD-MSA).
Lower operating current of 25mA reduces power consumption in networks
Typically, TOSAs use a large amount of electricity to attain a response fast enough for 10Gbps high-speed transmission. To reduce power consumption in optical transceivers, it is essential for DFB-LDs to operate at a lower current.

Mitsubishi Electric has developed a highly efficient DFB-LD that can operate at 25mA at 25 degrees Celsius – a 40 percent lower operating current compared to the 35mA in the company’s previous models. This improvement will lead to lower power consumption in networks.
Main Specifications
Operating temperature range: From - 5 to 90°C
Output wavelength: 1.3μm band
Mean optical output: Standard -2.5dBm
Operating current: 25mA @25°C
Main Specifications
SFP+ optical transceiver
XFP optical transceiver
Other 10Gbps pluggable optical transceivers
 
Future Deployment
Mitsubishi Electric will continue development to further increase the performance and output of TOSA, and plans to further expand its lineup.