外文题目: Development of a 2 mu m Tm-doped fiber laser for hyperspectral absorption spectroscopy applications
作者: Tao, Mengmeng; Tao, Bo; Hu, Zhiyun; Feng, Guobin; Ye, Xisheng; Zhao, Jun
刊名: Opt. Express
年: 2017 卷: 25 期: 26 页： 32386--32394
英文关键词:

WAVELENGTH-MODULATION-SPECTROSCOPY; OPTICAL-COHERENCE TOMOGRAPHY; ATMOSPHERIC WATER-VAPOR; DOMAIN MODE-LOCKING; SUPERCONTINUUM GENERATION; COMBUSTION DIAGNOSTICS; LOCKED LASERS; TEMPERATURE; LIDAR; H2O
英文摘要:
The hyperspectral absorption spectroscopy is attracting more and more attention as this technique enables continuous wavelength sweep over a whole absorption band, rather than one or several discrete absorption lines. Owing to the H2O possesses much stronger and more abundant absorption lines in the 2 mu m region, this work develop a widely tunable, narrow linewidth Tm-doped fiber laser around 1.87 mu m for the application of combustion diagnostics. The laser wavelength tuning range is designed from 1850 nm to 1890 nm to overlap the strong absorption band of H2O, and the laser linewidth is further narrowed to 0.04 nm by a fiber saturable absorber. With this laser system, demonstration experiments are implemented for the continuous detection of H2O absorption lines. Detailed absorption peaks of H2O from 1866 nm to 1879 nm are detected and well-resolved. The measured absorption spectrum agree well with the theoretical computation derived from HITRAN2012 database quantitatively, verifying this laser system ready for hyperspectral absorption applications. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/OE.25.032386


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