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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Spectroscopic properties of Tm~(3+) doped TeO_2-R _2O-La_2O_3 glasses for 1.47 μm optical amplifiers
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Spectroscopic properties of Tm~(3+) doped TeO_2-R _2O-La_2O_3 glasses for 1.47 μm optical amplifiers

机译：Tm〜（3+）掺杂的TeO_2-R _2O-La_2O_3玻璃的光谱特性，用于1.47μm光放大器

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摘要

Upon excitation at 808 nm laser diode, an intense 1.47 μm infrared fluorescence has been observed with a broad full width at half maximum (FWHM) of about 124 nm for the Tm~(3+)-doped TeO_2-K _2O-La_2O_3 glass. The Judd-Ofelt parameters found for this glass are: Ω_2 = 5.26 × 10~(-20) cm ~2, Ω_4 = 1.57 × 10~(-20) cm~2 and Ω_6 = 1.44 × 10-20 cm2. The calculated emission cross-sections of the 1.47 μm transition are 3.57 × 10~(-21) cm~2, respectively. It is noted that the gain bandwidth, σe × FWHM, of the glass is about 440 × 10~(-28) cm~3, which is significantly higher than that in ZBLAN and Gallate glasses, a high gain of 35.5 dB at 1470 nm can be obtained in a TKL glass fiber. TeO_2-R_2O (R = Li, Na, K)-La _2O_3 glasses has been considered to be more useful as a host for broadband optical fiber amplifier.
机译：在808 nm激光二极管上激发后，对于掺Tm〜（3+）的TeO_2-K _2O-La_2O_3玻璃，观察到强烈的1.47μm红外荧光，其半峰宽（FWHM）约为124 nm。该玻璃的Judd-Ofelt参数为：Ω_2= 5.26×10〜（-20）cm〜2，Ω_4= 1.57×10〜（-20）cm〜2，Ω_6= 1.44×10-20 cm2。计算出的1.47μm跃迁的发射截面分别为3.57×10〜（-21）cm〜2。值得注意的是，玻璃的增益带宽σe×FWHM约为440×10〜（-28）cm〜3，明显高于ZBLAN和Gallate玻璃，在1470 nm处的增益为35.5 dB。可以在TKL玻璃纤维中获得。 TeO_2-R_2O（R = Li，Na，K）-La _2O_3玻璃被认为是宽带光纤放大器的主机。

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