于秀明, 丁云飞, 马万卓, 赵得胜, 刘润民, 王天枢. 2.1 μm可调谐多波长掺钬光纤激光器[J]. 应用光学, 2019, 40(3): 500-504. DOI: 10.5768/JAO201940.0307003
引用本文: 于秀明, 丁云飞, 马万卓, 赵得胜, 刘润民, 王天枢. 2.1 μm可调谐多波长掺钬光纤激光器[J]. 应用光学, 2019, 40(3): 500-504. DOI: 10.5768/JAO201940.0307003
YU Xiuming, DING Yunfei, MA Wanzhuo, ZHAO Desheng, LIU Runmin, WANG Tianshu. Tunable multi-wavelength holmium-doped fiber laser operating at 2.1μm[J]. Journal of Applied Optics, 2019, 40(3): 500-504. DOI: 10.5768/JAO201940.0307003
Citation: YU Xiuming, DING Yunfei, MA Wanzhuo, ZHAO Desheng, LIU Runmin, WANG Tianshu. Tunable multi-wavelength holmium-doped fiber laser operating at 2.1μm[J]. Journal of Applied Optics, 2019, 40(3): 500-504. DOI: 10.5768/JAO201940.0307003

2.1 μm可调谐多波长掺钬光纤激光器

Tunable multi-wavelength holmium-doped fiber laser operating at 2.1μm

  • 摘要: 为了实现2.1 μm波段光纤激光器输出多波长激光,设计了一种基于光纤Sagnac干涉仪的可调谐多波长掺钬光纤激光器。采用1.9 μm波段掺铥光纤激光器泵浦一段长3 m的掺钬石英光纤,获得2.1 μm波段的光放大;环形腔中,由保偏光纤和偏振控制器构成的光纤Sagnac干涉仪,实现2.1 μm波段周期滤波,获得了2.1 μm波段多波长激光,输出功率1 mW~15 mW可调谐,最多可观测到6个波长的激光输出。通过调节环形腔内偏振控制器,能够实现2.1 μm波段1~6个波长的调谐。

     

    Abstract: In order to generate the multi-wavelength fiber laser at 2.1 μm band, a tunable multi-wavelength Ho3+-doped ring fiber laser based on all-fiber Sagnac interferometer was designed. A 3 m long Ho3+-doped silica fiber was pumped by a Tm3+-doped fiber laser, and then the spontaneous radiation at 2.1 μm band was amplified. In the annular cavity, the Sagnac fiber interferometer consisted of an 8 m long polarization maintain fiber (PMF) and a polarization controller (PC), and the output wavelength at 2.1 μm waveband can be period tuned by the Sagnac interferometer. In experiment, a multi-wavelength laser at 2.1 μm waveband can be got, the output power can be tuned from 1 mW to 15 mW, and up to 6 wavelengths of laser output can be observed. By adjusting the PC in annular cavity, the output tunable wavelength number can be realized from 1 to 6 at 2.1 μm band.

     

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