MULTICHANNEL OPTICAL WAVEGUIDE (VERSIONS) Russian patent published in 2003 - IPC

FIELD: optical instrumentation. SUBSTANCE: invention can find use in nonlinear and fiber optics, in medicinal optics, microscopy, semiconductor and ferroelectric optics, in spectroscopy and metrology, in physics of photon crystals and photochemistry. Multichannel optical wave guide comprises two or more matched flat plates made of glass or crystalline or plastic material optically transparent to ultraviolet, visible, infrared or microwave radiation. In agreement with first variant one plate comes in the form of flat optical reflecting diffraction grating which face surface carries several hundreds or thousands of parallel lines-channels of specified profile (triangular, rectangular or other), width and periodicity from 0.3 to 10.0-20.0 mcm and above. Second plate is superimposed with its optically flat surface on first plate to form one row of channels arranged periodically, through or filled with specified substance optically clear. In correspondence with second variant face surface of first plate caries several groups of lines-channels, one group of lines differing from another group by its parameters. Several individual single-row waveguides differing by their optical and physical characteristics are formed after superimposition of second flat plate on first plate. In accordance with third variant waveguide incorporates two identical plates, each plate coming in the form of optical flat reflecting diffraction grating. Plates match one another with lined surfaces to form two rows of holes-channels of specified profile, dimensions and periodicity. According to fourth variant face surfaces of both plates have matched separate groups of lines-channels. When these face surfaces are matched they form several individual double-row multichannel waveguides differing by their optical and physical characteristics. In correspondence with fifth variant waveguide is manufactured in the form of package comprising two outer plates and specified number of intermediate plates-gratings which matching forms multichannel multirow optical waveguide. EFFECT: enhanced optical characteristics of waveguides. 25 cl, 6 dwg