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Brief Communications

Light-injection prism with a parabolic gap profile

A. A. Zlenko, V. A. Sychugov


Abstract: A total-internal-reflection prism with a cylindrical base was designed for the injection of light into a thin-film dielectric waveguide. The efficiency of injection of a Gaussian beam of light into a film could be as high as 98.7%. The experimental value was 90%.

UDC: 621.378.33+535.89

PACS: 42.79.Bh, 42.25.Gy, 42.82.Et

Received: 29.12.1972

 English version: Soviet Journal of Quantum Electronics, 1974, 3:4, 339–340