可调谐可切换多波长双向布里渊-铒光纤环形激光器的研究

IF 0.7 4区 物理与天体物理 Q4 OPTICS
Optica Applicata Pub Date : 2021-01-01 DOI:10.37190/oa210306
F. Wang, R.Y. Yuan
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引用次数: 0

摘要

提出了一种布里渊频率间隔可切换的多波长双向布里渊-铒光纤环形激光器,并进行了实验验证。本文提出的布里渊-铒环形激光器,包括光放大器和高度非线性光纤,没有任何光隔离器,由于瑞利散射、受激布里渊散射和布里渊泵浦(BP)光相继引发的级联四波混频,产生奇阶和偶阶斯托克斯线,并在环形腔中反向循环。BP光和stokes诱导的瑞利后向散射光也同时在环形腔内循环。只有通过调整BP功率,才能控制基于布里渊的Stokes增益竞争和腔模振荡,才能方便地在单次BFS和奇或偶次双BFS之间切换激光输出。此外,在一定BP功率条件下,只需简单调整掺铒光纤放大器的泵浦功率,所提出的多波长布里因-铒光纤激光器还可以实现奇阶或偶阶Stokes生成和单BFS的Stokes生成切换,且波长数依次增加。研究了多波长双向布里渊-铒光纤环形激光器的稳定性和波长可调性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of a tunable and switchable multi-wavelength bidirectional Brillouin-erbium fiber ring laser
A multi-wavelength bidirectional Brillouin-erbium fiber ring laser with switchable Brillouin frequency spacing (BFS) is proposed and experimentally demonstrated. In the presented Brillouin-erbium ring laser, including an optical amplifier and a highly nonlinear fiber, and without any optical isolator, due to Rayleigh scattering, stimulated Brillouin scattering, and cascaded four-wave mixing initiated successively by the Brillouin pump (BP) light, the odd- and even-order Stokes lines are generated and circulate in the opposite direction in the ring cavity. The BP light and Stokes-induced Rayleigh backscattering light also simultaneously circulate in the ring cavity. Only by adjusting BP power, the gain competition between Brillouin based Stokes and cavity modes’ oscillation can be controlled, the laser output can be conveniently switched between single BFS and odd- or even-order double BFS. In addition, under the certain BP power conditions, the proposed multi-wavelength Brillouin-erbium fiber laser also can realize switchable odd- or even-order Stokes generation and Stokes generation with single BFS, with an increasing wavelength number in turn, only by simply adjusting pump power of the erbium-doped fiber amplifier. Stability and wavelength tunability of the proposed multi-wavelength bidirectional Brillouin-erbium fiber ring laser are also investigated, respectively.
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来源期刊
Optica Applicata
Optica Applicata 物理-光学
CiteScore
1.00
自引率
16.70%
发文量
21
审稿时长
4 months
期刊介绍: Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.
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