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Brief Communications

Investigation of prism coupling of radiation into a thin-film waveguide

E. M. Zolotov, V. M. Pelekhatyi


Abstract: An investigation was made of the nature of coupling of radiation into a thin-film waveguide by a prism with a cylindrical base. Dependences of the coupling efficiency on the dimensions and phase front of the beam were determined for different degrees of coupling of the prism to the film. The experimental results were compared with calculations. A study was made of the coupling of radiation into a variable-thickness waveguide.

UDC: 621.378.325

PACS: 42.79.Bh, 42.79.Gn

Received: 13.12.1973

 English version: Soviet Journal of Quantum Electronics, 1974, 4:4, 542–543