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Multi-wavelength fiber ring laser based on the semiconductor optical amplifier (SOA) with sampled fiberBragg grating (SFBG) in a Sagnac loop interferometer as the wavelength-selective filter is proposed.Four lasingwavelengths with 1.8 nm spacing have been generated stably at room temperature.The proposed laser has the advantagessuch as removal of the high-cost circulator,flexibility in channel-spacing tuning,and simple all-optical fiberconfiguration,which has potential applications in high-capacity wavelength-division-multiplexed (WDM) systems andmechanical sensors.
Multi-wavelength fiber ring laser based on semiconductor optical amplifier (SOA) with sampled fiberragg grating (SFBG) in a Sagnac loop interferometer as the wavelength-selective filter is proposed. Flow lasing wave length with 1.8 nm spacing have been generated stably at room temperature. The proposed laser has the advantages asuch as removal of the high-cost circulator, flexibility in channel-spacing tuning, and simple all-optical fiberconfiguration, which has potential applications in high-capacity wavelength-division-multiplexed (WDM) systems andmechanical sensors.