Coherent Receivers Enable Next-Generation Transport (2006)

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

ABSTRACT

The transport capacity of fiber-optic communications systems over ultralong-haul (UHL) distances has been significantly increased in recent years by technologies such as the EDFA, WDM, dispersion compensation, and forward error correction (FEC). The omnipresent on/off-keying (OOK) modulation format in conjunction with direct detection has worked very efficiently for data rates up to 10 Gbits/sec per WDM channel....

* Published in Lightwave Magazine, Jan 2006.