DISTRIBUTION FUNCTION OF REFRACTION INDEX IN PLANE OPTICAL-WAVEGUIDES, OBTAINED BY SOLID BODY DIFFUSION AND ION-EXCHANGE

PROSTAKOV N.S., PLESHAKOV V.G., FESENKO D.A., GRIGOREV G.V., SEITEMBETOV T.S., GALIULLIN M.A., OBYNOCHNYI A.A., RADZHAN P.K.

ANIKIN V.I., DERYUGIN L.N., LETOV D.A., POLOVINKIN A.N., SOTIN V.E.