Robust dual-wavelength ring-laser based on two spectrally different erbium-doped fiber amplifiers
- 1 December 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 8 (12) , 1630-1632
- https://doi.org/10.1109/68.544700
Abstract
The authors demonstrate simultaneous lasing at two wavelengths in a fiber ring-laser containing two erbium-doped fiber amplifiers with different spectral characteristics. The lasing wavelengths were selected by a filter combination. For certain wavelength pairs, the ring co-lased even if the loss at one wavelength increased by 8 dB relative to the loss at the other one, while a 1-dB change was enough to prevent co-lasing in a ring with two similar amplifiers. The increased robustness-to-loss variations is a consequence of the overall spectral gain inhomogeneity that results from combining two amplifiers with different gain spectra. The concept is also applicable to dual-wavelength transmission.Keywords
This publication has 11 references indexed in Scilit:
- Multiwavelength generation in an erbium-doped fiber laser using in-fiber comb filtersIEEE Photonics Technology Letters, 1996
- Erbium doped fibre amplifier with dynamic gain flatnessfor WDMElectronics Letters, 1995
- Polarisation dependent gain in erbium-doped fibreamplifiersElectronics Letters, 1994
- Wavelength selection and tuning by optical control in a two-segment erbium-doped fiber laserIEEE Photonics Technology Letters, 1994
- Coupled-cavity erbium fiber lasers incorporating fiber grating reflectorsOptics Letters, 1993
- Co-lasing in an electrically tunable erbium-doped fiber laserApplied Physics Letters, 1992
- Multiple wavelength operation of an erbium-doped fiber laserIEEE Photonics Technology Letters, 1992
- Fast method for accurate prediction of fibre laser oscillation wavelengthElectronics Letters, 1991
- Dynamic gain equalization in two-stage fiber amplifiersIEEE Photonics Technology Letters, 1990
- Study of spectral dependence of gain saturation and effect of inhomogeneous broadening in erbium-doped aluminosilicate fiber amplifiersIEEE Photonics Technology Letters, 1990