Real-time oscilloscope hits 65 GHz bandwidth, 100 GHz target for 2013: Page 3 of 3

May 21, 2012 // By Jean-Pierre Joosting
LeCroy Corporation recently extended the LabMaster 10 Zi product line to 65 GHz from a previously announced 60 GHz, and unveiled a roadmap to provide 100 GHz of real-time bandwidth in the LabMaster 10 Zi platform. The improvement to 65 GHz is made possible by outstanding results achieved with 8HP SiGe chipsets, which are performing beyond expectations.
measure amplitude noise at specific sampling points in the unit interval, and then perform subsequent analysis on crosstalk root cause.

A LabMaster 10 Zi system with four channels at 65 GHz (two acquisition modules) will provide the ability to view two lanes simultaneously using cabled inputs and capture serial data signals with power spectral density to nearly the fifth harmonic, or use eight channels at 36 GHz to capture all four lanes for detailed crosstalk analysis.

Optical transmission using coherent MIMO

While DP-QPSK and 16-QAM modulation formats have garnered most of the research investments for optical transmission in the past few years, parallel optical systems, such as frequency-parallel coherent optical super-channels or spatially-parallel coherent optical multiple-input-multiple-output (MIMO) systems have been gaining attention due to their ability to scale fiber capacities and to obtain higher transmission rates with lower speed components. In recent MIMO experiments done at Bell Labs a LabMaster 9 Zi-A modular oscilloscope with twelve channels was utilized to demonstrate a mode-multiplexed 6 x 20-GBaud QPSK transmission (240-Gb/s per wavelength channel) up to 4200 km and the results were honored with post-deadline paper acceptance at OFC/NFOEC in Los Angeles, California in March 2012.

Towards Terabit/second interface rates

Other researchers at Bell Labs have also used LabMaster oscilloscopes for record-breaking QPSK and 16-QAM research at data rates approaching 1 Tb/s, most recently a 640-Gb/s single-channel line rate using 80-GBaud PDM-16QAM.

"LabMaster oscilloscopes have played a key role in our research at Bell Labs. In our coherent MIMO experiments, the modular oscilloscope system synchronizes all twelve high-speed channels for us, which significantly facilitates our experiments," commented Dr. Peter Winzer from Bell Labs.

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