Bandwidth-tunable noise-like pulses through a 2-stage Lyot filter

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

Optical Fiber Technology Pub Date : 2025-05-07 DOI:10.1016/j.yofte.2025.104262

I. Armas-Rivera , L.A. Rodríguez-Morales , A. Ibarra-Garrido , M. Durán-Sánchez , B. Ibarra-Escamilla

引用次数: 0

Abstract

We propose and demonstrate a passive mode-locked fiber laser with a 2-stage Lyot filter as a mechanism to tune the noise-like pulse bandwidth and the central wavelength. The proposed filter consists of a first Lyot filter with tunable bandwidth based on bend-induced linear birefringence with tension concatenated to a second Lyot filter with highly birefringent fiber with constant bandwidth. This configuration allows us to change the 2-stage Lyot filter bandwidth while decreasing the adjacent sidebands favoring a pulsed emission with controlled behavior. The 2-stage Lyot filter bandwidth can be tuned from 10.55 to 5.26 nm and the central wavelength changed from 1530 to 1560 nm. The output pulses have a repetition rate of 1.548 MHz. The experimental filter behavior is supported by numerical simulations based on the Jones matrix formulation.

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带宽可调的噪声脉冲通过一个2级Lyot滤波器

我们提出并演示了一种无源锁模光纤激光器，该激光器采用二级Lyot滤波器作为调节类噪声脉冲带宽和中心波长的机制。该滤波器由基于弯曲诱导线性双折射的带宽可调的第一Lyot滤波器和带张力的高双折射光纤的第二Lyot滤波器组成。这种配置允许我们改变2级Lyot滤波器带宽，同时减少邻近的边带，有利于脉冲发射的控制行为。两级Lyot滤波器带宽可在10.55 ~ 5.26 nm范围内调节，中心波长可在1530 ~ 1560 nm范围内调节。输出脉冲的重复频率为1.548 MHz。基于Jones矩阵公式的数值模拟支持了实验滤波器的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.