NDLI: Multiphoton absorption and damage threshold of $Yb^{3+}$ and $Tm^{3+}$ doped SiO2 fiber core

Content Provider	IEEE Xplore Digital Library
Author	Zhang Yunju Wang Zhongkai Chen Yanan Zhao Youyi
Copyright Year	2011
Description	Author affiliation: Science and Technology on electr_optical information, secunty control laboratory, Liang Fang, China (Chen Yanan; Zhao Youyi) \|\| National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, China (Zhang Yunju; Wang Zhongkai)
Abstract	Using the $Yb^{3+}$ and $Tm^{3+}$ doped SiO2 fiber rods as the samples and ultrafast 800 nm femtosecond (fs) laser sources, the multiphoton absorption characteristics and damage threshold are experimental investigated based on the open Z-scan and nonlinear transmission measurement technology. The five-photon absorption coefficient of the $Yb^{3+}$ doped fiber core has nearly tenfold increment than that of the fiber clad. But the five-photon absorption coefficient of the $Tm^{3+}-dopd$ fiber core is less than 5% of the fiber clad. With the incident fs laser power increasing, the five-photon absorption coefficient of three different samples is decreased. Further analyzing the open Z-scan results, the multiphoton absorption should contain the six-photon absorption process. Using the nonlinear transmission measurement technology, the damage thresholds are measured, and they are 12.1 TW/ $cm^{2}$ (the $Yb^{3+}-doped$ fiber core) and 16.4 $TW/cm^{2}$ (fiber clad).
Starting Page	46
Ending Page	48
File Size	678648
Page Count	3
File Format	PDF
ISBN	9781457707940
e-ISBN	9781457707964
DOI	10.1109/AISMOT.2011.6159312
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber amplifiers Absorption Z-scan Nonlinear Transmission Measurement by laser beam Multiphoton absorption Erbium-doped fiber lasers Fiber gratings Photonics
Content Type	Text
Resource Type	Article

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