{"title":"Design and analysis of parallel polarization-beam-splitter-based optical filter with adjustable channel spacing","authors":"Yinghui Zhang, Xuefang Zhou, Minquan Lai, Miao Hu","doi":"10.1007/s10043-024-00920-5","DOIUrl":null,"url":null,"abstract":"<p>In this paper, a parallel polarization-beam-splitter-based fiber optic filter with adjustable channel spacing is proposed and demonstrated. The transmission characteristics of the proposed filter are simulated and analyzed using the transmission matrix theory. Simulation results show that the filter can generate three different channel spacings by adjusting different polarization controllers (PCs) in front of the polarization beam splitter (PBS). The experiment confirms the feasibility of a multi-wavelength fiber laser (MWFL) constructed based on this filter in achieving channel spacing switching. Its wavelength spacing can be switched between 0.46 nm, 0.66 nm, and 0.88 nm, matching the simulated results of the filter. The power fluctuations between the outputs of the three-channel spacing outputs are less than 1.17 dB, 0.89 dB, and 0.98 dB, and the wavelength fluctuations are less than 0.18 nm, 0.14 nm, and 0.13 nm, respectively.</p>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"8 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Review","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s10043-024-00920-5","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, a parallel polarization-beam-splitter-based fiber optic filter with adjustable channel spacing is proposed and demonstrated. The transmission characteristics of the proposed filter are simulated and analyzed using the transmission matrix theory. Simulation results show that the filter can generate three different channel spacings by adjusting different polarization controllers (PCs) in front of the polarization beam splitter (PBS). The experiment confirms the feasibility of a multi-wavelength fiber laser (MWFL) constructed based on this filter in achieving channel spacing switching. Its wavelength spacing can be switched between 0.46 nm, 0.66 nm, and 0.88 nm, matching the simulated results of the filter. The power fluctuations between the outputs of the three-channel spacing outputs are less than 1.17 dB, 0.89 dB, and 0.98 dB, and the wavelength fluctuations are less than 0.18 nm, 0.14 nm, and 0.13 nm, respectively.
期刊介绍：
Optical Review is an international journal published by the Optical Society of Japan. The scope of the journal is:
General and physical optics;
Quantum optics and spectroscopy;
Information optics;
Photonics and optoelectronics;
Biomedical photonics and biological optics;
Lasers;
Nonlinear optics;
Optical systems and technologies;
Optical materials and manufacturing technologies;
Vision;
Infrared and short wavelength optics;
Cross-disciplinary areas such as environmental, energy, food, agriculture and space technologies;
Other optical methods and applications.
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