Dynamic vortex mode-switchab e erbium-doped Brillouin laser pumped by high-order mode

Xu Jiangtao; Zhang Longkun; Liu Xing; Zhang Liang; Lu Jiafeng; Wang Longtao; Zeng Xianglong

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Dynamic vortex mode-switchab e erbium-doped Brillouin laser pumped by high-order mode

机译：动态涡旋模式 - SwitchAB E Erbium-Doped Brillouin激光通过高阶模式泵送

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We experimentally demonstrated that the transversal vortex modes of an all-fiber erbium-doped Brillouin laser can be dynamically switched by using the high-order mode (HOM) of Brillouin pump (BP), which is used to achieve the oscillation of HOM inside the ring cavity. Core-mode conversion in a few-mode fiber (FMF) between the fundamental mode and HOM is obtained by cascading an acoustically induced fiber grating (AIM) and a mode selection coupler (MSC) operating at the same wavelength region. Through frequency shift keying (FSK) modulation of the AIFG signal, the output transversal modes can be switched dynamically between LP01 and vortex modes, and the measured purities of output HOM are more than 82%. Moreover, the output Brillouin wavelength can also be tuned via altering the input wavelength of BP and the resonant response of AIFG. We have achieved HOM Brillouin-shifted laser output within the wavelength band from 1545-1560 nm. The output linewidth of the proposed Brillouin laser is less than 4 kHz. (C) 2021 Optical Society of America

机译：实验证明，利用布里渊泵（BP）的高阶模式（HOM）可以动态切换全光纤掺铒布里渊激光器的横向涡旋模式，从而实现环形腔中HOM的振荡。在多模光纤（FMF）中，通过级联工作在相同波长区域的声感应光纤光栅（AIM）和模式选择耦合器（MSC），实现了基波和HOM之间的芯模转换。通过对AIFG信号进行频移键控（FSK）调制，可以在LP01和涡街模式之间动态切换输出横模，测量的输出HOM纯度超过82%。此外，还可以通过改变BP的输入波长和AIFG的谐振响应来调节输出布里渊波长。我们已经在1545-1560nm波长范围内实现了HOM布里渊位移激光输出。该布里渊激光器的输出线宽小于4kHz。（2021）美国光学学会

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来源
《Optics Letters》 |2021年第3期|共4页
作者
Xu Jiangtao; Zhang Longkun; Liu Xing; Zhang Liang; Lu Jiafeng; Wang Longtao; Zeng Xianglong;
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Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

Shenzhen Technol Univ Key Lab Adv Opt Precis Mfg Technol Guangdong High Shenzhen 518118 Peoples R China;

Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

Shanghai Univ Key Lab Specialty Fiber Opt &

Opt Access Networks Joint Int Res Lab Specialty FiberOpt &

Adv Commun Shanghai Inst Adv Commun &

Data Sci Shanghai 200444 Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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4. Analytical Expression of the Threshold Pump Power of Erbium-doped Fiber Lasers Pumped at 980 nm and 1480 nm Wavelengths [J] . 半导体光子学与技术（英文版） . 1996,第002期
5. Cascade conical refraction for annular pumping of a vortex Nd:YAG laser and selective excitation of low- and high-order Laguerre-Gaussian modes [J] . Wu Yongxiao, Wang Zhongyang, Chen Sanbin, Laser physics letters . 2018,第5期

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7. A single-longitudinal-mode Brillouin fiber laser passively stabilized at the pump resonance frequency with a dynamic population inversion grating [J] . V. V. Spirin, C. A. Lopez-Mercado, D. Kinet, Laser physics letters . 2013,第1期

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Dynamic vortex mode-switchab e erbium-doped Brillouin laser pumped by high-order mode

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