Optical component sales fall again in Q2 News & Analysis 9/17/2007 Post a comment Persistent inventory corrections has led to a second consecutive quarter-on-quarter decline in the sales of optical components, with the sector falling by 5 percent in the second quarter to $936 million compared with the first quarter, according to market research group Ovum RHK.
Researchers claim optical comms breakthrough News & Analysis 9/10/2007 Post a comment Researchers at the Optoelectronics Research Centre within the University of Southampton, U.K., have developed a filter that can be used in high bit-rate optical systems to remove noise introduced when signals are transmitted over long distances.
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments