High bandwidth coherent optical receivers

High bandwidth coherent optical receivers

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By eeNews Europe

When combined with Teledyne LeCroy’s LabMaster 10Zi-A oscilloscopes and integrated Optical-LinQ analysis software, the IQS receivers test DP-QPSK and DP-16QAM optical signals at speeds up to 130 GBaud.

The result of several years of collaboration with the optical specialists at Coherent Solutions, the 70-GHz Teledyne LeCroy IQS70 coherent optical receiver pairs with the LabMaster 10-65Zi-A oscilloscope to provide a system bandwidth of 65 GHz, delivering an ideal solution for characterizing leading-edge 56-Gbaud communications systems and enabling detection up to 130 GBaud. For lower-rate applications, the 42-GHz IQS42 coherent optical receiver provides the ultimate test platform for up to 32-Gbaud DP-16QAM or DP-QPSK when used with the 36-GHz LabMaster 10-36Zi-A.

Completing the comprehensive OMA solution, Optical-LinQ is an intuitive and fully integrated software package for measurement and visualization of optically modulated signals. It runs entirely within the user interface of the LabMaster 10Zi-A. No other OMA on the market offers such integrated control of both oscilloscope and coherent receiver. Optical-LinQ provides fully automated control of the IQS receiver, phase recovery algorithms, and polarization demultiplexing, as well as an exhaustive number of modulation analysis displays and parameters.

In addition to a market-leading system bandwidth of 70 GHz, these optical modulation analysis systems provide a dynamic calibration capability to enable the LabMaster 10 Zi-A real-time oscilloscope to be disconnected from the IQS coherent optical receiver and used for other electrical validation and testing without requiring a factory re-calibration. This enables dual use of the oscilloscope for serial-data eye diagrams and jitter, noise and crosstalk analysis on NRZ electrical tributaries using Teledyne LeCroy’s SDAIII-CompleteLinQ software package.

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