A simple mechanism to suppress the mode competition for stable and tunable dual-wavelength erbium-doped fiber lasers
A suppressant effect for mode competition of dual-wavelength lasing oscillations induced by polarization hole buming effect in an ordinary erbium-doped fiber is proposed and experimentally demonstrated.The polarization hole burning effect is introduced by an all fiber polarization controller directly fused with a segment of erbium-doped fiber.The mechanism of the all fiber polarization controller to suppress the wavelength competition is described in detail.Results show that the mechanism is helpful to obtain stable dual-wavelength lasing oscillations at room temperature in the erbium-doped fiber laser.By adjusting the comb filter,the wavelength tuning between different dual-wavelength oscillations is realized.The side mode suppression ratio of each lasing wavelength is measured to be more than 55dB.The 3dB bandwidth of each lasing oscillation is 0.01nm and the 30dB bandwidth is 0.10nm.The power fluctuation and wavelength shift are measured to be less than 0.8dB and 0.05nm over 32 minutes for all the dual-wavelength lasing oscillations obtained in the experiment.
Erbium-doped fiber laser Dual-wavelength fiber laser Homogeneous broadening effect Polarization hole burning effect
Chenfang Zhang Jiang Sun Siwen Zheng Shuisheng Jian
Key Lab of All Optical Network & Advanced Telecommunication Network of EMC,Beijing Jiaotong University,Beijing 100044,China;Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044,China
国际会议
沈阳
英文
496-499
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）