We demonstrated a compact multiwavelength Brillouin-erbium fiber laser (MBEFL) with quadruple-Brillouin-frequency spacing. The quadruple-Brillouin-frequency spacing multiwavelength is generated mainly by utilizing two four-port circulators, two coils of single-mode fiber and two erbium gain modules. The generated multiwavelength spectra were investigated through adjusting the Brillouin pump (BP) and the 980 nm pumps. In the experiments, eight stable wavelengths were produced and the wavelength spacing was 0.348 nm (about 43.5 GHz) as the wavelength and the power of the BP were 5 mW and 1548.11 nm respectively, meanwhile the two 980 nm pumps’ powers were 470 mW and 520 mW respectively. The output multiwavelength can be tuned from 1546.12 nm to 1561.01 nm, and the maximum optical signal-to-noise ratio (OSNR) of the output channel was about 37 dB. The average OSNR of the stable multiwavelength was about 27 dB. The proposed stable and wider channel spaced MBEFL has diverse applications in dense wavelength division multiplexing optical communication, microwave photonics and fiber-optic sensors.

我们展示了一种具有四倍布里渊频率间隔的紧凑型多波长布里渊铒光纤激光器 (MBEFL)。四倍布里渊频率间隔多波长主要利用两个四端口环行器、两个单模光纤线圈和两个铒增益模块产生。通过调整布里渊泵 (BP) 和 980 nm 泵来研究生成的多波长光谱。实验中产生了8个稳定波长，波长间隔为0.348 nm（约43.5 GHz），BP的波长和功率分别为5 mW和1548.11 nm，同时两个980 nm泵浦的功率分别为470 mW和470 mW。分别为 520 毫瓦。输出多波长可在 1546.12 nm 至 1561.01 nm 范围内调谐，输出通道的最大光信噪比 (OSNR) 约为 37 dB。稳定多波长的平均 OSNR 约为 27 dB。所提出的稳定且更宽的通道间隔 MBEFL 在密集波分复用光通信、微波光子学和光纤传感器中具有多种应用。