Brief Communications

Prototype of a fiber-optical communication system with a thin-film modulator

A. V. Belov, I. F. Belyaletdinov, E. M. Dianov, E. M. Zolotov, A. M. Prokhorov, E. A. Shcherbakov


Abstract: A prototype was built of a fiber-optical communication system in which an He–Ne laser (λ = 0.63 μ) was the light source. A thin-film electro-optic Bragg-type modulator, utilizing a diffused layer in LiNbO₃, was employed in this system. Another component of the system was a 200-m long glass fiber with a step-like distribution of the refractive index (the losses in the fiber were ~8 dB/cm).

UDC: 621.372.8:621.315.61

PACS: 42.30.Qw

Received: 19.07.1977

 English version: Soviet Journal of Quantum Electronics, 1978, 8:1, 132–133