DEVICE FOR CONTINUOUS MONITORING OPERATING CAPACITY OF FIBRE-OPTIC LINEAR CHANNEL Russian patent published in 2010 - IPC H04B10/08 G02B6/35 H04J14/00 

FIELD: physics.

SUBSTANCE: device has an optical power coupler, first, second and third collimating microlenses, a holographic photoplate, a nonlinear threshold device, a semi-transparent mirror, an array of detectors and a reference optical radiation source. One percent output of the optical power coupler is connected to a single-mode optical fibre, whose output coincides with the front focal plane of the first microlens, the rear focal plane of which coincides with the front plane of the holographic photoplate whose rear plane coincides with the front focal plane of the second microlens, the rear focal plane of which coincides with the input of the nonlinear threshold device, whose output is optically connected by the semi-transparent mirror to the third microlens, in whose focal plane the array of detectors lies. Radiation from the source and radiation of the useful signal from the output of the first microlens forms a interference pattern in the plane of the holographic photoplane.

EFFECT: higher efficiency and methodical reliability of continuous monitoring linear channels of fibre-optic transmission systems with wavelength-division multiplexing and fibre-optic amplifiers.

2 dwg