Determination of the amplitude-frequency characteristics ofW-type fiber waveguides

Autor: V V Savvin, D K Sattarov, I V Golubenko
Rok vydání: 1982
Předmět:
Zdroj: Soviet Journal of Quantum Electronics. 12:1347-1349
ISSN: 0049-1748
DOI: 10.1070/qe1982v012n10abeh006057
Popis: The results are given of theoretical and experimental investigations of the amplitude-frequency characteristics of fiber waveguides obtained using continuous optical radiation modulated by a microwave signal. A simple analytic expression is derived for the transfer function of an ideal fiber waveguide when a Gaussian light beam is coupled in and the numerical aperture of the fiber is considerably less than unity. The results are given of experimental determinations of the amplitude-frequency characteristics of quartz multimode fiber waveguides with a W-like profile of the refractive index, obtained in the modulation frequency range 800–1250 MHz. The amplitude-frequency characteristics determined in this way are compared with calculated results.
Databáze: OpenAIRE