A tunable multi-wavelength Brillouin-erbium linear cavity fiber laser with higher optical signal to noise ratio
A tunable multi-wavelength Brillouin-erbium linear cavity fiber laser with higher optical signal to noise ratio
复制标题
高信噪比可调谐多波长布里渊铒线性腔光纤激光器
DOI：
10.1088/1555-6611/aae278
复制
发表时间：
2018-12-01
期刊：
影响因子：
1.2
通讯作者：
Zheng, Jiajin
中科院分区：
文献类型：
--
作者：
Ma, Lei;Zou, Hui;Zheng, Jiajin
我们通过在单线性激光腔内利用双通预放大布里渊泵浦 (BP) 实验证明了一种广泛可调谐的多波长布里渊铒光纤激光器。由于这种预放大技术，激光器可以在低泵浦功率下运行，并表现出 35 mW 泵浦功率的低阈值运行，以产生第一个斯托克斯信号。通过调节偏振控制器（PC），自激光腔模式的振荡可以从1562nm到1572nm调节超过10nm。我们通过实验表明，通过改变 BP 波长和调整 PC，所提出的新型光纤激光器结构可以在 7.4 dBm BP 功率和 250 mW 980 nm 泵浦功率下实现多达 33 个输出通道，恒定波长间隔为 0.088 nm。此外，平均32个稳定输出通道均可在12nm以上调谐，平均光信噪比为25dB。
We experimentally demonstrated a widely tunable multi-wavelength Brillouin-erbium fiber laser by utilizing a double-pass pre-amplification Brillouin pump (BP) within a single-linear laser cavity. Owing to this pre-amplification technique, the laser can operate at low pump power and exhibit a low threshold operation of 35 mW pump power to create the first Stokes signal. By adjusting the polarization controller (PC), self-lasing cavity modes’ oscillation can be tuned over 10 nm from 1562 nm to 1572 nm. We experimentally showed that the proposed novel fiber laser structure can achieve up to ~33 output channels with a constant wavelength spacing of 0.088 nm at 7.4 dBm of BP power and 250 mW of the 980 nm pump power by varying the wavelength of the BP and adjusting the PC. In addition, an average of 32 stable output channels could all be tuned over 12 nm with an average optical signal to noise ratio of 25 dB.