Abstract
Frequency fluctuation in a single-mode optical fiber is briefly discussed, and a preliminary experiment for optical heterodyne communication in a single-mode fiber is carried out with the aid of frequency-stabilized He–Ne lasers operating at a wavelength of 0.633 μm. As a result, we have obtained clear demodulated signals, having sinusoidal, triangular, and rectangular waveforms, through an optical fiber 100 m in length.
© 1981 Optical Society of America
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