Low-loss two-channel fiber-optic waveguide

A. B. Grudinin, A. N. Gur'yanov, E. M. Dianov, S. V. Ignat'ev, S. I. Miroshnichenko


Abstract: The losses and cross talk in a two-channel fiber-optic waveguide were investigated experimentally. The minimum losses were 1.5 dBAm in the central channel and 3.5 dB/km (at λ = 1.55 μ) in the annular channel, the channels being optically decoupled by better than 35 dB. A modified near-field method is described for measuring the absolute refractive index profile

UDC: 621.372.8.029.7

PACS: 42.81.Qb, 42.81.Dp

Received: 24.02.1983

 English version: Soviet Journal of Quantum Electronics, 1984, 14:1, 46–48

Bibliographic databases:

•