微颗粒聚丙烯腈吸收光纤激光器中调q锁模脉冲的产生

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-03-17 DOI:10.1016/j.yofte.2025.104208

Aeriyn D. Ahmad , Masruroh , Norrima Mokhtar , Hamzah Arof , Irfan Anjum Badruddin , Sarfaraz Kamangar , Sulaiman W. Harun

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引用次数: 0

摘要

本文研究了在掺铒光纤激光器（EDFL）中使用聚丙烯腈（PAN）吸收体产生调q锁模脉冲。PAN吸收剂是通过将其微粒分散在透明胶带上制备的，然后将其添加到EDFL腔中。该吸收器成功地实现了腔损耗调制，在泵浦功率阈值为61.1 mW时实现了稳定的调q操作。当泵浦功率从61.1 mW增加到155.0 mW时，重复频率从33.39 kHz增加到45.35 kHz，脉冲宽度从8.55 μs减少到6.42 μs。调q的EDFL工作在1560 nm的中心波长，获得了最高的脉冲能量240.4 nJ，斜率效率为7.61%。通过在环形腔中加入100 m单模光纤（SMF），启动了自启动锁模操作，在123.7到254.13 mW的泵浦功率范围内观察到稳定的脉冲。该激光器工作在1566 nm的中心波长，重复频率为1.8 MHz，脉冲宽度为4.40 ps。这些结果表明，聚丙烯腈是光纤激光器中脉冲产生的有效吸收剂。

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Q-switched and Mode-Locked pulse generation in fiber laser with micro particles polyacrylonitrile absorber

This paper investigates the use of polyacrylonitrile (PAN) absorber in an erbium-doped fiber laser (EDFL) for generating Q-switched and mode-locked pulses. PAN absorber was prepared by dispersing its micro-particles onto scotch tape, which was then added into the EDFL cavity. This absorber successfully enabled cavity loss modulation, with stable Q-switched operation achieved at a pump power threshold of 61.1 mW. The repetition frequency rose from 33.39 kHz to 45.35 kHz, and pulse width reduced from 8.55 μs to 6.42 μs as pump power rose from 61.1 mW to 155.0 mW. The Q-switched EDFL, operating at a central wavelength of 1560 nm, achieved the highest pulse energy of 240.4 nJ and a slope efficiency of 7.61 %. By adding 100 m of single-mode fiber (SMF) to the ring cavity, self-starting mode-locked operation was initiated, with stable pulses observed between 123.7 and 254.13 mW pump power. The laser operated at a central wavelength of 1566 nm, with a repetition rate of 1.8 MHz and a pulse width of 4.40 ps. These results demonstrate that polyacrylonitrile is an effective absorber for pulse generation in fiber lasers.

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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.