DEVICE FOR STUDYING LINEAR DWDM TRUNK PATHS BY THE RECIRCULATION LOOP METHOD Russian patent published in 2019 - IPC H04B10/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the optical communication equipment, specifically to the field of measurement equipment for optical information transmission systems, and can be used for complex measurements of the characteristics of the linear path of high-speed DWDM trunks based on the recirculation loop method. Device uses a specialized driver for simulating the DWDM channel mesh into which a test signal is inserted, which modulates the transmitted signal of the 100G module, and a marker signal that ensures synchronization of all operations in load, recirculation cycle counting, output and evaluation of the transmission quality for the initial parameters entered into the ultra-fast processor, which determines the possibility of using the most modern methods of measuring transmission quality taking into account the standard techniques for processing digital streams.

EFFECT: creation of the possibility to study trunk paths with periodic retransmission of high-speed linear signals with complex modulation formats used in modern and future transceiver modules, using the automation of measurement mode based on industrial products of modern high-speed microelectronics and program execution of all recirculation cycles in accordance with the initial setting of the parameters of linear equipment.

6 cl, 1 dwg