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Wavelength-interval switchable Brillouin-Raman random fiber laser through Brillouin pump manipulation |
Yang Li(李阳)1, En-Ming Xu(徐恩明)1, Rui-Jia Chen(陈睿佳)1, Yu-Gang Shee2,‡, and Zu-Xing Zhang(张祖兴)1,† |
1 Advanced Photonic Technology Laboratory, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; 2 Department of Electrical and Electronic Engineering, Lee Kong Chian Faculty of Engineering & Science (LKC FES), Universiti Tunku Abdul Rahman (UTAR) Sungai Long Campus, Malaysia |
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Abstract A wavelength-interval switchable Brillouin-Raman random fiber laser (BRRFL) based on Brillouin pump (BP) manipulation is proposed in this paper. The proposed wavelength-interval switchable BRRFL has a full-open cavity configuration, featuring multiwavelength output with wavelength interval of double Brillouin frequency shifts. Through simultaneously injecting the BP light and its first-order stimulated Brillouin-scattered light into the cavity, the laser output exhibits a wavelength interval of single Brillouin frequency shift. The wavelength-interval switching effect can be manipulated by controlling the power of the first-order stimulated Brillouin scattering light. The experimental results show the multiwavelength output can be switched between double Brillouin frequency shift multiwavelength emission with a broad bandwidth of approximately 60 nm and single Brillouin frequency shift multiwavelength emission of 44 nm. The flexible optically controlled random fiber laser with switchable wavelength interval makes it useful for a wide range of applications and holds significant potential in the field of wavelength-division multiplexing optical communication.
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Received: 19 March 2024
Revised: 12 April 2024
Accepted manuscript online: 16 April 2024
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PACS:
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.60.Fc
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(Modulation, tuning, and mode locking)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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Fund: Poject supported by the National Natural Science Foundation of China (Grant Nos. 62175116 and 62311530343) and the Postgraduate Research Innovation Program of Jiangsu Province, China (Grant No. KYCX22 0913). |
Corresponding Authors:
Yu-Gang Shee, Zu-Xing Zhang
E-mail: zxzhang@njupt.edu.cn;sheeyg@utar.edu.my
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Cite this article:
Yang Li(李阳), En-Ming Xu(徐恩明), Rui-Jia Chen(陈睿佳), Yu-Gang Shee, and Zu-Xing Zhang(张祖兴) Wavelength-interval switchable Brillouin-Raman random fiber laser through Brillouin pump manipulation 2024 Chin. Phys. B 33 074209
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