Discovery Semiconductors intros 100-Gigabit Ethernet quad photoreceiver arrays

OCTOBER 5, 2009 -- Discovery Semiconductors Inc. says it has successfully developed quad photoreceiver arrays designed for 10- and 40-km transmission over standard singlemode fiber according to the 100 Gigabit Ethernet standard (100GBase-LR4 and 100GBase-ER4).

OCTOBER 5, 2009 -- Discovery Semiconductors Inc. says it has successfully developed quad photoreceiver arrays designed for 10- and 40-km transmission over standard singlemode fiber according to the 100 Gigabit Ethernet standard (100GBase-LR4 and 100GBase-ER4).

The quad photoreceiver array consists of four monolithically integrated InGaAs photodiodes on an InP substrate and four transimpedance amplifiers (TIAs) to produce a four-channel electrical output signal, each channel running up to 28 Gbps.

Discovery Semiconductor says the new quad photoreceiver arrays demonstrate unpreamplified and uncorrected bit-error rate (UBER) sensitivity of -12 dBm while operating in the 1310-nm wavelength band. The power consumption of the quad photoreceiver array is typically 200 mW per channel. The arrays are available either with GPPO outputs or coplanar waveguide RF outputs and will ship to customers in late 2009.

Said Abhay Joshi, CEO of Discovery Semiconductors, "These quad photoreceiver arrays follow our long heritage of innovative photodetector modules and systems, and we are happy to offer our photoreceiver technology for the 100 GbE market."

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