METHOD AND DEVICE FOR TESTING OPTICAL NETWORKS Russian patent published in 2009 - IPC H04B10/08 

FIELD: physics, measurement.

SUBSTANCE: invention refers to measurement technology in optical transmission channels. E.g., channel with branches between optical linear terminal of central office and optical network terminal of end user, containing: the first and second device plugs for the channel, optical coupler, the first and second ports of which are connected to the first and second plugs respectively to provide optical transmission channel, as well as the third port transmitting part of each optical signal received on the first port, and the fourth port transmitting part of each optical signal received on the second port. Transducers transform parts of optical signal to proper electric signals which are processed to be measured in a required way. Measurement results can be displayed with appropriate monitor. As signals of two different wave lengths are transmitted, the device can divide optical signal into parts according to wave length and process each of these parts separately.

EFFECT: design of measurement device for bidirectional optical signals propagating in optical transmission channel between elements, one of which is not concerned in transmission in case of absence of channel integrity.

37 cl, 3 dwg