A finesse-enhanced Er-doped-fiber ring resonator
- 1 January 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 9 (11), 1554-1560
- https://doi.org/10.1109/50.97646
Abstract
A two-coupler-type Er-doped-fiber ring resonator that compensates for the round-trip optical loss by optical amplification is proposed. Also proposed is a mode-filtered heterodyne method for resonant-linewidth measurements which does not demand narrow-linewidth light sources, but uses the beat noise between two uncorrelated lights filtered by the resonator passband. With this method, a finesse >or=500 and a resonant linewidth <or=17 kHz were confirmed from the Er-doped fiber ring resonator. The ring resonator was operated as a high-resolution optical spectrum analyzer.Keywords
This publication has 16 references indexed in Scilit:
- Fiber-optic sensor using an injection-locked local laserJournal of Lightwave Technology, 1991
- Wavelength-tunable single-frequency and single-polarisation er-doped fibre ring-laser with 1.4 kHz linewidthElectronics Letters, 1990
- Spectral linewidth broadening in Er-doped-fibre amplifiers measured with less than 1.4 kHz linewidth light sourceElectronics Letters, 1990
- Effects of stimulated Brillouin scattering on the performance of polarization-maintaining all-fiber ring resonatorsOptics Letters, 1989
- Low-threshold synchronously pumped all-fiber ring Raman laserJournal of Lightwave Technology, 1987
- Theory and implementation of a Raman active fiber delay lineJournal of Lightwave Technology, 1986
- Dependence of semiconductor laser linewidth on measurement time: evidence of predominance of 1/f noiseElectronics Letters, 1985
- Semiconductor laser linewidth broadening due to 1/f carrier noiseElectronics Letters, 1983
- Filter response of single-mode fibre recirculating delay linesElectronics Letters, 1982
- Novel method for high resolution measurement of laser output spectrumElectronics Letters, 1980