2.1μm可调谐多波长掺钬光纤激光器
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摘要
为了实现2.1μm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1.9μm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2.1μm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2.1μm波段周期滤波,获得了2.1μm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2.1μm波段1～6个波长的调谐。
In order to generate the multi-wavelength fiber laser at 2.1 μm band, a tunable multi-wavelength Ho~(3+)-doped ring fiber laser based on all-fiber Sagnac interferometer was designed. A 3 m long Ho~(3+)-doped silica fiber was pumped by a Tm~(3+)-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.
In order to generate the multi-wavelength fiber laser at 2.1 μm band, a tunable multi-wavelength Ho~(3+)-doped ring fiber laser based on all-fiber Sagnac interferometer was designed. A 3 m long Ho~(3+)-doped silica fiber was pumped by a Tm~(3+)-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.
引文
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[13] WANG Xiong,ZHU Yadong,ZHOU Pu,et al.Tunable,multiwavelength tm-doped fiber laser based on polarization rotation and four-wave-mixing effect [J].Optics Express,2013,21(22):25977-25984.
[14] MA Wanzhuo,WANG Tianshu,ZHANG Peng,et al.Widely tunable multi-wavelength thulium-doped fiber laser using a fiber interferometer and a tunable spatial mode beating filter[J].Appl.Opt.,2015,54 (12):3786- 3791.
[15] ZHANG Peng,WANG Tianshu,MA Wanzhuo,et al.Tunable multiwavelength Tm-doped fiber laser based on the multimode interference effect[J].Appl.Opt.,2015,54 (15):4667-4671.
[16] LIU Peng,WANG Tianshu,ZHANG Peng,et al.Widely tunable multi-wavelength thulium-doped fiber laser based on nonlinear polarization rotation[J].Microw and Opt.Technol.Lett.,2016,58 (7):1540-1543.
[17] PENG Wanjing,YAN Fengping,LI Qi ,et al.A 1.97 μm multiwavelength thulium-doped silica fiber laser based on a nonlinear amplifier loop mirror[J].Laser Physics Letters,2013,10(11):115102
[18] WANG Zhen,WANG Tianshu,JIA Qingsong,et al.Triple brillouin frequency spacing multiwavelength fiber laser with double Brillouin cavities and its application in microwave signal generation[J].Appl.Opt.,2017,56 (26):7419-7426.文章编号:1002-2082(2019)03-0505-06
[2] MCALEAVEY F J,O’GORMAN J,DONEGAN J F,et al.Narrow linewidth,tunable tm-doped fluoride fiber laser for optical-based hydrocarbon gas sensing[J].IEEE J.Sel.Top.Quantum Electro,1997,3:1103-1111.
[3] LIU Xiaoping,OSGOOD R M,Jr VLASOV Y A,et al.Mid-infrared optical parametric amplifier using silicon nanophotonic waveguides[J].Nature Photon,2010,4:557-560.
[4] WANG Tianshu,WEI Yizhen,HU Kai,et al.All-fiber laser generating at 3.8 μm pumped by 1565 nm fiber laser and the second-order laser at 1.9 μm[J].Microw.Opt.Technol.Lett:2014,56:848-850.
[5] WU Jianfeng,JIANG Shibin,QUAN Tiequn,et al.2 μm lasing from highly thulium doped tellurite glass microsphere[J].Appl.Phys.Lett.,2005,87:211118 .
[6] GENG Jihong,WU Jianfeng,JIANG Shibin,et al.Efficient operation of diode-pumped single frequency thulium-doped fiber lasers near 2 μm[J].Opt.Lett.,2007,32:355-357.
[7] RICHARDS B,TSANG Y,BINKS D,et al.Efficient 2 μm Tm3+-doped tellurite fiber laser[J].Opt.Lett.,2008,33:402-404.
[8] GENG Jihong,WANG Qing,WANG Jiafu,et al.All-fiber wavelength-swept laser near 2 μm[J].Opt.Lett.,2011,36:3771-3773.
[9] WEI Y,HU K,SUN B,et al.All-fiber widely wavelength-tunable thulium-doped fiber laser incorporating a Fabry-Perot filter [J].Laser Phys.,2012,22(4):770-773.
[10] ZHANG M,KELLEHER E J R,TORRISI F,et al.Tm-doped fiber laser mode-locked by graphene-polymer composite [J].Optics Express,2012,20(22):25077-25084.
[11] LIU Jiang,WANG Pu,High-power passively mode-locked thulium-doped femtosecond fiber laser at 2.0 μm [J].Chinese Journal of Lasers,2012,39(9):0902001 刘江,王璞.高功率被动锁模2.0 μm掺铥飞秒脉冲光纤激光器[J].中国激光,2012,39(9) :0902001.
[12] WANG Tianshu,MA Wanzhuo,JIA Qingsong,et al.Passively mode-locked fiber lasers based on nonlinearity at 2 μm band[J].IEEE Journal of Selected Topics in Quantum Electronics,2018,24 (3):1102011.
[13] WANG Xiong,ZHU Yadong,ZHOU Pu,et al.Tunable,multiwavelength tm-doped fiber laser based on polarization rotation and four-wave-mixing effect [J].Optics Express,2013,21(22):25977-25984.
[14] MA Wanzhuo,WANG Tianshu,ZHANG Peng,et al.Widely tunable multi-wavelength thulium-doped fiber laser using a fiber interferometer and a tunable spatial mode beating filter[J].Appl.Opt.,2015,54 (12):3786- 3791.
[15] ZHANG Peng,WANG Tianshu,MA Wanzhuo,et al.Tunable multiwavelength Tm-doped fiber laser based on the multimode interference effect[J].Appl.Opt.,2015,54 (15):4667-4671.
[16] LIU Peng,WANG Tianshu,ZHANG Peng,et al.Widely tunable multi-wavelength thulium-doped fiber laser based on nonlinear polarization rotation[J].Microw and Opt.Technol.Lett.,2016,58 (7):1540-1543.
[17] PENG Wanjing,YAN Fengping,LI Qi ,et al.A 1.97 μm multiwavelength thulium-doped silica fiber laser based on a nonlinear amplifier loop mirror[J].Laser Physics Letters,2013,10(11):115102
[18] WANG Zhen,WANG Tianshu,JIA Qingsong,et al.Triple brillouin frequency spacing multiwavelength fiber laser with double Brillouin cavities and its application in microwave signal generation[J].Appl.Opt.,2017,56 (26):7419-7426.文章编号:1002-2082(2019)03-0505-06