铒镱共掺调频光纤激光器  

Er-Yb codoped frequency modulated fiber laser

作　　者：俞本立[1] 曹志刚[1] 甄胜来[1] 朱军[1] 张仁杰[1] 

机构地区：[1]安徽大学信息材料与器件重点实验室,安徽合肥230039

出　　处：《量子电子学报》2006年第2期164-166,共3页Chinese Journal of Quantum Electronics

基　　金：安徽省优秀青年科技基金资助课题(04042045);安徽省高等学校青年教师科研"资助计划"项目(2004jq111)

摘　　要：研究了一种新型的短腔铒镱共掺单纵模调频光纤激光器,推导了该类光源利用零差俭测法时功率谱密度的理论表达式,进行了数值模拟,计算出了最大频偏量。激光器是由一段4 cm长的铒镱共掺光纤和两个窄线宽光纤布拉格光栅构成,通过对靠近抽运端光栅的长度调制实现了激光的频率调制。激光器线宽小于400 kHz, 输出功率大于3 mW,最大频偏可以达到55 MHz,最大频偏量的实验结果与理论分析一致。A novel short cavity Er-Yb codoped single-longitudinal-mode frequency modulated fiber laser is demonstrated. The theoretical spectrum expression of frequency modulated laser using delayed self homodyne technique is deduced and simulated. This laser is mainly fabricated by a 4 cm long Er-Yb codoped fiber and two spectrally narrow fiber Bragg gratings. To realize the purpose of frequency modulation, the grating near the input of pump is modulated in length. The output power of the laser is more than 3 mW, linewidth is less than 400 kHz and maximum value of the laser optical frequency deviation can reach 55 MHz.

关 键 词：纤维与波导光学 光纤激光器 调频 铒镱共掺 

分 类 号：TN253[电子电信—物理电子学]