Er2O3 for high-gain waveguide amplifiers

被引：42

作者：

Saini, S ^{[1
]}

Chen, K

Duan, XM

Michel, J

Kimerling, LC

Lipson, M

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02143 USA

[2] Cornell Univ, Dept Elect & Comp Engn, Ithaca, NY 14853 USA

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2004年 / 33卷 / 07期

基金：

美国国家科学基金会;

关键词：

erbium oxide; microphotonics; waveguide amplifiers;

D O I：

10.1007/s11664-004-0246-z

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Following the demonstration of room-temperature luminescence, Er2O3 has been explored as a high-gain medium for ultra-compact waveguide amplifiers. With sputtered and annealed films, we measure three radiative lifetimes (7 ms, 0.8 ms, and 0.5 ms) and upconversion coefficients at 4.2 K. We have correlated these measurements with three crystalline phases: the thermodynamically stable bcc phase and the metastable fcc and hcp phases. The 7-ms lifetime is correlated with the fcc phase, implying the metastable crystal state has a profound influence on inhibiting upconversion interaction between neighbor Er atoms. Measurements indicate optical gain >3 dB/cm is possible.

引用

页码：809 / 814

页数：6

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