Discovery Semiconductors manufactures photodetectors and balanced photoreceivers for 10 Gb, 40Gb, and 100 Gb applications.

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Optical Coherent Receivers for 2.5 and 5 Gb/s (2005)

C. Wree, D. Becker, D. Mohr, and A. Joshi
Discovery Semiconductors, Inc.
119 Silvia Street
Ewing, New Jersey, 08628, USA


We present coherent optical detection with high sensitivity for fiber-optic and free-space applications. The system can operate at 840nm, 1064nm, 1310nm, and in the S, L and C bands. We show the sensitivity improvement of balanced detection for non-return-to-zero On/Off keying (NRZ-OOK) at 2.5 Gb/s and 5 Gb/s compared to single-ended detection.

* Paper presented at the 18th Annual Meeting of the IEEE Lasers & Electro-Optics Society, Sydney, Australia, 23-27 October 2005, paper WM1.

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