Mitsubishi Electric Develops 10 Gbps Low Noise Avalanche Photodiode - Softpedia

Mitsubishi Electric Develops 10 Gbps Low Noise Avalanche Photodiode - Softpedia: "Mitsubishi Electric Corporation announced today its successful development of an avalanche photodiode (APD) for use in high sensitivity optical receivers in fiber optic communications.

The avalanche photodiode was mounted on a XMD MSA compatible Receiver Optical Sub Assembly (ROSA), and this new construction is capable of 10 Gbps(2)-80km transmissions with low noise and the world's highest reliability while also increasing compatibility.


With sharp increases in Internet traffic in recent years, XFPs, small optical transceivers that comply with the 10 Gbps transmission standard specification, have been used to increase transmission capacity in urban mid- and long-distance trunk lines. A way has been sought to increase performance of the light emission and receiving element mounted on the optical transceiver in order to extend transmission of the current 40-80km range as well as reduce the number of broadcasting optical amplifiers and reduce construction cost of fiber optic networks.

For long distance communications, however, it was necessary to develop an avalanche photo diode that reduces noise up to 40 percent over previous models so that even very weak signals can be received by the light-receiving element. With this model, we have developed a new planar construction giving it low noise characteristics as well as the world's highest level of reliability. We have also mounted a small light module (ROSA) to the light-receiving element, which can be easily attached to small optical transceivers like XFP. "