用于1.6至2.1微米范围内发射的铥/钬共掺杂纤芯区域光纤。

Tm/Ho profiled co-doped core area optical fiber for emission in the range of 1.6-2.1 µm.

作者信息

Miluski Piotr, Markowski Krzysztof, Kochanowicz Marcin, Łodziński Marek, Żmojda Jacek, Pisarski Wojciech A, Pisarska Joanna, Kuwik Marta, Leśniak Magdalena, Dorosz Dominik, Ragiń Tomasz, Askirka Valiantsin, Dorosz Jan

机构信息

Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351, Bialystok, Poland.

Faculty of Geology, Geophysics and Environment Protection, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059, Krakow, Poland.

出版信息

Sci Rep. 2023 Aug 26;13(1):13963. doi: 10.1038/s41598-023-41097-2.

DOI:10.1038/s41598-023-41097-2

PMID:37633975

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10460410/

Abstract

Double-clad optical fiber with a multi-ring core profile doped with thulium and holmium fabricated by Modified Chemical Vapor Deposition Chelate Doping Technology (MCVD-CDT) is presented. The measured TmO and HoO complexes' weight concentrations were 0.5% and 0.2% respectively. Numerical analyses show weakly guiding conditions and 42.2 µm of MFD LP at 2000 nm. The low NA numerical aperture (NA = 0.054) was obtained for the 20/250 µm core/cladding ratio optical fiber construction. The emission spectra in the range of 1.6-2.1 µm vs. the fiber length are presented. The full width at half maximum (FWHM) decreases from 318 to 270 nm for fiber lengths from 2 to 10 m. The presented fiber design is of interest for the development of new construction of optical fibers operating in the eye-safe spectral range.

摘要

介绍了采用改进化学气相沉积螯合掺杂技术（MCVD-CDT）制造的掺铥和钬的多环纤芯结构的双包层光纤。测得的TmO和HoO配合物的重量浓度分别为0.5%和0.2%。数值分析表明，在2000nm波长下呈现弱导条件且模场直径（MFD）为42.2µm。对于20/250µm纤芯/包层比的光纤结构，获得了低数值孔径（NA = 0.054）。给出了1.6 - 2.1µm范围内相对于光纤长度的发射光谱。对于2至10m的光纤长度，半高宽（FWHM）从318nm减小到270nm。所提出的光纤设计对于开发在人眼安全光谱范围内工作的新型光纤结构具有重要意义。