用于11和22 GHz拍频产生的可调谐s波段多波长布里渊光纤激光器

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-08-26 DOI:10.1016/j.yofte.2025.104378

Harith Ahmad , Leela Wanti Lohano , Bilal Nizamani , Muhamad Zharif Samion , Mohamad Faizal Ismail

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引用次数: 0

摘要

本研究演示了多波长布里渊光纤激光器（MWBFL）使用抑制包层掺铒光纤（DC-EDF）增益介质产生射频信号。同时，利用色散补偿光纤作为非线性布里渊增益介质。通过调整BGM和其他元件在激光腔内的位置来调节布里渊间距。因此，在0.08和0.16 nm处观察到布里渊-斯托克斯线之间的单间距和双间距。通过改变布里渊泵浦（BP）波长，分析了该激光器在单间距时的工作范围为1510.30 ~ 1524.30 nm，在双间距时的工作范围为1514.30 ~ 1523.80 nm。实验结果表明，单布里渊间距和双布里渊间距下的拍频分别为10.92 GHz和21.83 GHz。据作者所知，这是第一次在布里渊双间距下使用DC-EDF的演示。此外，考虑到可切换的载波频率，所获得的基于光子的射频产生具有发展5G系统的潜力。

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Tunable S-band multiwavelength Brillouin fiber laser for beat frequency generation at 11 and 22 GHz

This study demonstrates the generation of radio frequency (RF) signals with a multiwavelength Brillouin fiber laser (MWBFL) using a gain medium of depressed cladding erbium-doped fiber (DC-EDF). Meanwhile, the dispersion compensated fiber (DCF) is utilized as a nonlinear Brillouin gain medium (BGM). The Brillouin spacing is tuned by adjusting the position of BGM and other components within the laser cavity. Therefore, the single and double spacing between the Brillouin Stokes lines is observed at 0.08 and 0.16 nm. The proposed laser covers an operating range of 14 nm from 1510.30 to 1524.30 nm at single spacing and approximately 10 nm from 1514.30 to 1523.80 nm at double spacing, analyzed by changing the Brillouin pump (BP) wavelength. The beat frequencies are experimentally generated at 10.92 and 21.83 GHz for single and double Brillouin spacing, respectively. To the author’s knowledge, this is the first demonstration of using DC-EDF at Brillouin double spacing. Furthermore, the obtained photonic-based RF generation has the potential to evolve 5G systems by considering the switchable carrier frequencies.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.