400-nm-Bandwidth Emission From a Cr-Doped Glass Fiber
Journal
IEEE Photonics Technology Letters
Journal Volume
19
Journal Issue
8
Pages
595-597
Date Issued
2007
Author(s)
Chen, Jian-Cheng
Lin, Yen-Sheng
Tsai, Cheng-Nan
Huang, Kuang-Yao
Lai, C.-C.
Su, Wei-Zhi
Shr, R.-C.
Kao, Fu-Jen
Chang, Tao-Yuan
Abstract
Cr4+-doped glass fiber by a laser-heated pedestal growth method is reported. By analyzing the absorption spectra, the transitions of Cr3+ and Cr4+ in the fibers are identified. With appropriate pumping wavelength and divalent doping concentration, both Cr3+ and Cr4+ emission bands can be excited simultaneously, and become comparable in their fluorescent intensities. As a result, more than 400-nm-width emission peaked at 1144 nm was generated at room temperature. As much as 12 μW of amplified spontaneous emission was obtained by pumping with a 900-nm Ti:sapphire laser. © 2007 IEEE.
Subjects
Fluorescence spectroscopy; Infrared spectroscopy; Light sources; Optical fiber devices; Transition metal compounds
Other Subjects
Absorption spectra; Chromium; Fluorescence spectroscopy; Glass fibers; Infrared spectroscopy; Light sources; Optical pumping; Semiconductor doping; Superradiance; Bandwidth emission; Divalent doping; Pumping wavelength; Optical fibers
Type
journal article
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