 01.03.2012 Complex modulation such as QAM and QPSK, used to achieve data rates of over 25 Gbits/s per lane, has grown in use over the last few years as 40 Gbit/s and 100 Gbit/s links come on line. In some labs, engineers are developing enough optical and electrical products to warrant more than one OMA (optical modulation analyzer). Seeing that trend, Agilent Technologies has developed the N4392A, a four-channel OMA with a large 15-in. screen. Borrowing from popular oscilloscope packaging, the N4392A relies on height rather than depth, taking up relatively little bench space. With a weight of 13 kg (28.7 lbs.), the N4392A is light enough to travel from bench to bench. In other words, you could find it on your colleague's bench at any time.
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