Induced-transparency based on optical resonator structure is usually generated by utilizing double optical resonators. However the induced-transparency is not stable due to the detuning between resonators. In this paper, stable induced-transparency, of which the transmission peak has high transmittance and narrow bandwidths, was achieved by using a single optical resonator. First a single optical resonator self-interference structure was established, and the transmission spectra of the structure were discussed using transfer matrix theory in order to investigate the influence of structural parameters on the transmission spectra. Based on the theoretical results, a single optical resonator self-interference structure with single-mode fiber was fabricated with appropriate structure parameters. Then the experimental system for measuring the transmission spectra of the structure was established. Finally, the applications of the structure were discussed. The experimental results show that the transmission peak with very narrow bandwidths can be obtained by using the single optical resonator induced-transparency. The peak transmittance is 0.62, the bandwidth of the transmission peak is 0.54 MHz, and the product of the transmission peak bandwidth and the length of the waveguide is 6.48 MHz·m. The transmission peak with narrow bandwidth can be applied to filters, optical information processing, high precision optical measurements and detections.