Xu Ximing, Dai Yitang, Chen Xiangfei, Jiang Dianjie, Xie Shizhong
Opt Express. 2005 May 16;13(10):3877-82. doi: 10.1364/opex.13.003877.
Chirped and phase-sampled fiber Bragg gratings are fabricated and used as reflectors in tunable DBR fiber laser for the first time. By controlling the phase of each sampling section, sampled Bragg gratings (SBG) with different channel spacing can be obtained using only a single chirped phase mask. A 30nm-wide tunable Erbium-doped fiber (EDF) laser is designed and experimentally demonstrated by utilizing the vernier effect of two such SBGs with channel spacing of 3.2nm and 3.6nm, respectively. The lasers' output power of different channels is almost identical (difference less than 1dB) within the tunable range.
啁啾和相位采样光纤布拉格光栅首次被制作出来并用作可调谐分布布拉格反射(DBR)光纤激光器中的反射器。通过控制每个采样段的相位,仅使用一个啁啾相位掩模就能获得具有不同信道间距的采样布拉格光栅(SBG)。利用两个分别具有3.2nm和3.6nm信道间距的此类SBG的游标效应,设计并通过实验证明了一个30nm宽的可调谐掺铒光纤(EDF)激光器。在可调谐范围内,不同信道的激光器输出功率几乎相同(差异小于1dB)。