首页|Broadband bidirectional Brillouin-Raman random fiber laser with ultra-narrow linewidth

Broadband bidirectional Brillouin-Raman random fiber laser with ultra-narrow linewidth

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We present a Brillouin-Raman random fiber laser(BRRFL)with full-open linear cavity structure to generate broad-band Brillouin frequency comb(BFC)with double Brillouin-frequency-shift spacing.The incorporation of a regeneration portion consisting of an erbium-doped fiber and a single-mode fiber enables the generation of broadband BFC.The dynam-ics of broadband BFC generation changing with the pump power(EDF and Raman)and Brillouin pump(BP)wavelength are investigated in detail,respectively.Under suitable conditions,the bidirectional BRRFL proposed can produce a flat-amplitude BFC with 40.7-nm bandwidth ranging from 1531 nm to 1571.7 nm,and built-in 242-order Brillouin Stokes lines(BSLs)with double Brillouin-frequency-shift spacing.Moreover,the linewidth of single BSL is experimentally measured to be about 2.5 kHz.The broadband bidirectional narrow-linewidth BRRFL has great potential applications in optical communication,optical sensing,spectral measurement,and so on.

random laserfiber laserstimulated Brillouin scattering(SBS)stimulated Raman scattering(SRS)

杨茜、李阳、邹辉、梅杰、徐恩明、张祖兴

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Advanced Photonic Technology Laboratory,College of Electronic and Optical Engineering & College of Microelectronics,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of China1311 Talent Plan of Nanjing University of Posts and TeleCommunications,ChinaPostgraduate Research & Practice Innovation Program,Jiangsu Province,China

6217511691950105SJCX21-0276

2024

10.1088/1674-1056/ad09cb

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(2)
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