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提出了一种可调谐多波长布里渊掺铒光纤激光器结构。利用由光环行器构成的光纤环形镜和环形腔,形成双向反馈结构,可以有效降低布里渊阈值。该激光器实现了在1513～1578nm之间超过65nm范围可调谐的激光输出。当布里渊抽运功率为15dBm(32mW),980nm抽运功率为23dBm(200mW)时获得了波长间隔为0.08nm的11个波长的激光输出。
A tunable multi-wavelength Brillouin erbium-doped fiber laser structure is proposed. By using the optical circulator composed of an optical circulator and the annular cavity, a bi-directional feedback structure is formed, which can effectively reduce the Brillouin threshold. The laser achieves a laser output that is tunable over the 65 nm range between 1513 and 1578 nm. When the Brillouin pumping power is 15dBm (32mW) and the pumping power of 980nm is 23dBm (200mW), the laser output of 11 wavelengths with a wavelength of 0.08nm is obtained.